diff --git a/editor/libeditor/base/nsEditorUtils.cpp b/editor/libeditor/base/nsEditorUtils.cpp
index fda366fa5c58..a393ec01ee9e 100644
--- a/editor/libeditor/base/nsEditorUtils.cpp
+++ b/editor/libeditor/base/nsEditorUtils.cpp
@@ -138,14 +138,6 @@ nsDOMIterator::ForEach(nsDomIterFunctor& functor) const
   }
 }
 
-inline nsresult
-nsDOMIterator::MakeList(nsBoolDomIterFunctor& functor,
-                        nsCOMArray<nsIDOMNode>& outArrayOfNodes) const
-{
-  NS_PRECONDITION(outArrayOfNodes.Count() == 0, "Calling MakeList on non-empty list!");
-  return AppendList(functor, outArrayOfNodes);
-}
-
 nsresult
 nsDOMIterator::AppendList(nsBoolDomIterFunctor& functor,
                           nsCOMArray<nsIDOMNode>& arrayOfNodes) const
diff --git a/editor/libeditor/base/nsEditorUtils.h b/editor/libeditor/base/nsEditorUtils.h
index e6d534fdfbb7..56c2b1dd0099 100644
--- a/editor/libeditor/base/nsEditorUtils.h
+++ b/editor/libeditor/base/nsEditorUtils.h
@@ -212,7 +212,12 @@ class nsDOMIterator
     nsresult Init(nsIDOMNode* aNode);
     void ForEach(nsDomIterFunctor& functor) const;
     nsresult MakeList(nsBoolDomIterFunctor& functor,
-                      nsCOMArray<nsIDOMNode>& outArrayOfNodes) const;
+                      nsCOMArray<nsIDOMNode>& outArrayOfNodes) const
+    {
+      NS_PRECONDITION(outArrayOfNodes.Count() == 0,
+                      "Calling MakeList on non-empty list!");
+      return AppendList(functor, outArrayOfNodes);
+    };
     nsresult AppendList(nsBoolDomIterFunctor& functor,
                         nsCOMArray<nsIDOMNode>& arrayOfNodes) const;
   protected: