diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index bccb63e..eff21cb 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -3347,9 +3347,8 @@
       Previous.getFoundDecl()->isTemplateParameter()) {
     // Maybe we will complain about the shadowed template parameter.
     if (!D.isInvalidType())
-      if (DiagnoseTemplateParameterShadow(D.getIdentifierLoc(),
-                                          Previous.getFoundDecl()))
-        D.setInvalidType();
+      DiagnoseTemplateParameterShadow(D.getIdentifierLoc(),
+                                      Previous.getFoundDecl());
 
     // Just pretend that we didn't see the previous declaration.
     Previous.clear();