diff --git a/clang/include/clang/AST/ParentMapContext.h b/clang/include/clang/AST/ParentMapContext.h
index 3ab55fb3d309..be4d75df7b99 100644
--- a/clang/include/clang/AST/ParentMapContext.h
+++ b/clang/include/clang/AST/ParentMapContext.h
@@ -89,8 +89,6 @@ public:
 /// Container for either a single DynTypedNode or for an ArrayRef to
 /// DynTypedNode. For use with ParentMap.
 class DynTypedNodeList {
-  using DynTypedNode = DynTypedNode;
-
   llvm::AlignedCharArrayUnion<DynTypedNode, ArrayRef<DynTypedNode>> Storage;
   bool IsSingleNode;