diff --git a/clang/include/clang/AST/TemplateBase.h b/clang/include/clang/AST/TemplateBase.h
index 73b667ce1b60..07e70cae1e24 100644
--- a/clang/include/clang/AST/TemplateBase.h
+++ b/clang/include/clang/AST/TemplateBase.h
@@ -520,7 +520,7 @@ class TemplateArgumentListInfo {
 
   // This can leak if used in an AST node, use ASTTemplateArgumentListInfo
   // instead.
-  void* operator new(size_t bytes, ASTContext& C);
+  void *operator new(size_t bytes, ASTContext &C) = delete;
 
 public:
   TemplateArgumentListInfo() {}