diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 3cad9827fdab6..f7b8b192a206c 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -19966,7 +19966,7 @@ static void CheckForDuplicateEnumValues(Sema &S, ArrayRef<Decl *> Elements,
       continue;
 
     DeclOrVector& Entry = Iter->second;
-    if (EnumConstantDecl *D = Entry.dyn_cast<EnumConstantDecl*>()) {
+    if (EnumConstantDecl *D = dyn_cast<EnumConstantDecl *>(Entry)) {
       // Ensure constants are different.
       if (D == ECD)
         continue;