diff --git a/swift/ql/lib/codeql/swift/elements/decl/ConstructorDecl.qll b/swift/ql/lib/codeql/swift/elements/decl/ConstructorDecl.qll
index 0a88ec16700..7933c7f93b2 100644
--- a/swift/ql/lib/codeql/swift/elements/decl/ConstructorDecl.qll
+++ b/swift/ql/lib/codeql/swift/elements/decl/ConstructorDecl.qll
@@ -1,4 +1,7 @@
 private import codeql.swift.generated.decl.ConstructorDecl
 private import codeql.swift.elements.decl.MethodDecl
 
+/**
+ * An initializer of a class, struct, enum or protocol.
+ */
 class ConstructorDecl extends Generated::ConstructorDecl, MethodDecl { }
diff --git a/swift/ql/lib/codeql/swift/elements/decl/DestructorDecl.qll b/swift/ql/lib/codeql/swift/elements/decl/DestructorDecl.qll
index 1dfa7c4c2e3..b9e1739f31a 100644
--- a/swift/ql/lib/codeql/swift/elements/decl/DestructorDecl.qll
+++ b/swift/ql/lib/codeql/swift/elements/decl/DestructorDecl.qll
@@ -1,4 +1,7 @@
 private import codeql.swift.generated.decl.DestructorDecl
 private import codeql.swift.elements.decl.MethodDecl
 
+/**
+ * A deinitializer of a class.
+ */
 class DestructorDecl extends Generated::DestructorDecl, MethodDecl { }