diff --git a/Node/DelimitedList/ParameterDeclarationList.php b/Node/DelimitedList/ParameterDeclarationList.php
new file mode 100644
index 0000000..ebf9eb1
--- /dev/null
+++ b/Node/DelimitedList/ParameterDeclarationList.php
@@ -0,0 +1,15 @@
+<?php
+/*---------------------------------------------------------------------------------------------
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+namespace PhpParser\Node\DelimitedList;
+use PhpParser\Node\DelimitedList;
+use PhpParser\NodeKind;
+
+class ParameterDeclarationList extends DelimitedList {
+    public function __construct() {
+        parent::__construct(NodeKind::ParameterDeclarationList);
+    }
+}
\ No newline at end of file
diff --git a/NodeKind.php b/NodeKind.php
index d283a93..b979f50 100644
--- a/NodeKind.php
+++ b/NodeKind.php
@@ -107,4 +107,5 @@ class NodeKind {
     const InlineHtml = 97;
     const UseVariableNameList = 98;
     const QualifiedNameParts = 99;
+    const ParameterDeclarationList = 100;
 }
\ No newline at end of file
diff --git a/parser.php b/parser.php
index a5a957d..135198f 100644
--- a/parser.php
+++ b/parser.php
@@ -34,6 +34,7 @@ use PhpParser\Node\ClassNode;
 use PhpParser\Node\CloneExpression;
 use PhpParser\Node\ConstDeclaration;
 use PhpParser\Node\ConstElement;
+use PhpParser\Node\DelimitedList\ParameterDeclarationList;
 use PhpParser\Node\DelimitedList\QualifiedNameParts;
 use PhpParser\Node\FunctionStaticDeclaration;
 use PhpParser\Node\GlobalDeclaration;
@@ -1156,7 +1157,13 @@ class Parser {
         }
 
         $functionDefinition->openParen = $this->eat(TokenKind::OpenParenToken);
-        $functionDefinition->parameters = $this->parseDelimitedList(TokenKind::CommaToken, $this->isParameterStartFn(), $this->parseParameterFn(), $functionDefinition);
+        $functionDefinition->parameters = $this->parseDelimitedList(
+            TokenKind::CommaToken,
+            $this->isParameterStartFn(),
+            $this->parseParameterFn(),
+            $functionDefinition,
+            false,
+            ParameterDeclarationList::class);
         $functionDefinition->closeParen = $this->eat(TokenKind::CloseParenToken);
         if ($isAnonymous) {
             $functionDefinition->anonymousFunctionUseClause = $this->parseAnonymousFunctionUseClause($functionDefinition);
diff --git a/tests/cases/parser/classMethods3.php.tree b/tests/cases/parser/classMethods3.php.tree
index a6bc46f..a695491 100644
--- a/tests/cases/parser/classMethods3.php.tree
+++ b/tests/cases/parser/classMethods3.php.tree
@@ -53,7 +53,7 @@
                                             "textLength": 1
                                         },
                                         "parameters": {
-                                            "DelimitedList": {
+                                            "ParameterDeclarationList": {
                                                 "children": [
                                                     {
                                                         "ParameterNode": {
diff --git a/tests/cases/parser/classMethods4.php.tree b/tests/cases/parser/classMethods4.php.tree
index 7f8a7ef..e09446c 100644
--- a/tests/cases/parser/classMethods4.php.tree
+++ b/tests/cases/parser/classMethods4.php.tree
@@ -53,7 +53,7 @@
                                             "textLength": 1
                                         },
                                         "parameters": {
-                                            "DelimitedList": {
+                                            "ParameterDeclarationList": {
                                                 "children": [
                                                     {
                                                         "ParameterNode": {
diff --git a/tests/cases/parser/functions10.php.tree b/tests/cases/parser/functions10.php.tree
index 834e026..1dc0590 100644
--- a/tests/cases/parser/functions10.php.tree
+++ b/tests/cases/parser/functions10.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/functions11.php.tree b/tests/cases/parser/functions11.php.tree
index 7745b33..dceff7b 100644
--- a/tests/cases/parser/functions11.php.tree
+++ b/tests/cases/parser/functions11.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/functions12.php.tree b/tests/cases/parser/functions12.php.tree
index 1615a1a..dbe0c8f 100644
--- a/tests/cases/parser/functions12.php.tree
+++ b/tests/cases/parser/functions12.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/functions13.php.tree b/tests/cases/parser/functions13.php.tree
index cdb6492..ca9fbd0 100644
--- a/tests/cases/parser/functions13.php.tree
+++ b/tests/cases/parser/functions13.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/functions14.php.tree b/tests/cases/parser/functions14.php.tree
index 9724d8d..81b61e0 100644
--- a/tests/cases/parser/functions14.php.tree
+++ b/tests/cases/parser/functions14.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/functions15.php.tree b/tests/cases/parser/functions15.php.tree
index 99e5f05..a3e5477 100644
--- a/tests/cases/parser/functions15.php.tree
+++ b/tests/cases/parser/functions15.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/functions16.php.tree b/tests/cases/parser/functions16.php.tree
index b2d4be9..1904eea 100644
--- a/tests/cases/parser/functions16.php.tree
+++ b/tests/cases/parser/functions16.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/functions3.php.tree b/tests/cases/parser/functions3.php.tree
index fb5d46b..ca52911 100644
--- a/tests/cases/parser/functions3.php.tree
+++ b/tests/cases/parser/functions3.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/functions6.php.tree b/tests/cases/parser/functions6.php.tree
index dda9c9c..e88f52b 100644
--- a/tests/cases/parser/functions6.php.tree
+++ b/tests/cases/parser/functions6.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/functions7.php.tree b/tests/cases/parser/functions7.php.tree
index bb4511c..3df8b8f 100644
--- a/tests/cases/parser/functions7.php.tree
+++ b/tests/cases/parser/functions7.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/functions8.php.tree b/tests/cases/parser/functions8.php.tree
index 9627114..b5cef97 100644
--- a/tests/cases/parser/functions8.php.tree
+++ b/tests/cases/parser/functions8.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/functions9.php.tree b/tests/cases/parser/functions9.php.tree
index 996fa3c..bba2343 100644
--- a/tests/cases/parser/functions9.php.tree
+++ b/tests/cases/parser/functions9.php.tree
@@ -27,7 +27,7 @@
                         "textLength": 1
                     },
                     "parameters": {
-                        "DelimitedList": {
+                        "ParameterDeclarationList": {
                             "children": [
                                 {
                                     "ParameterNode": {
diff --git a/tests/cases/parser/interfaceDeclaration10.php.tree b/tests/cases/parser/interfaceDeclaration10.php.tree
index f79c748..e68e193 100644
--- a/tests/cases/parser/interfaceDeclaration10.php.tree
+++ b/tests/cases/parser/interfaceDeclaration10.php.tree
@@ -56,7 +56,7 @@
                                             "textLength": 1
                                         },
                                         "parameters": {
-                                            "DelimitedList": {
+                                            "ParameterDeclarationList": {
                                                 "children": [
                                                     {
                                                         "ParameterNode": {
diff --git a/tests/cases/parser/interfaceDeclaration8.php.tree b/tests/cases/parser/interfaceDeclaration8.php.tree
index 0f07d99..9aea19c 100644
--- a/tests/cases/parser/interfaceDeclaration8.php.tree
+++ b/tests/cases/parser/interfaceDeclaration8.php.tree
@@ -56,7 +56,7 @@
                                             "textLength": 1
                                         },
                                         "parameters": {
-                                            "DelimitedList": {
+                                            "ParameterDeclarationList": {
                                                 "children": [
                                                     {
                                                         "ParameterNode": {
diff --git a/tests/cases/parser/interfaceDeclaration9.php.tree b/tests/cases/parser/interfaceDeclaration9.php.tree
index 60cbae6..453f1ab 100644
--- a/tests/cases/parser/interfaceDeclaration9.php.tree
+++ b/tests/cases/parser/interfaceDeclaration9.php.tree
@@ -56,7 +56,7 @@
                                             "textLength": 1
                                         },
                                         "parameters": {
-                                            "DelimitedList": {
+                                            "ParameterDeclarationList": {
                                                 "children": [
                                                     {
                                                         "ParameterNode": {