1 files changed, 6 insertions, 2 deletions
diff --git a/clang/lib/AST/QualTypeNames.cpp b/clang/lib/AST/QualTypeNames.cpp
index 561757b1ba64..26aaa96a1dc6 100644
--- a/clang/lib/AST/QualTypeNames.cpp
+++ b/clang/lib/AST/QualTypeNames.cpp
@@ -80,8 +80,12 @@ static bool getFullyQualifiedTemplateName(const ASTContext &Ctx,
         Ctx, ArgTDecl, true, WithGlobalNsPrefix);
   }
   if (NNS) {
-    TName = Ctx.getQualifiedTemplateName(NNS,
-                                         /*TemplateKeyword=*/false, ArgTDecl);
+    TemplateName UnderlyingTN(ArgTDecl);
+    if (UsingShadowDecl *USD = TName.getAsUsingShadowDecl())
+      UnderlyingTN = TemplateName(USD);
+    TName =
+        Ctx.getQualifiedTemplateName(NNS,
+                                     /*TemplateKeyword=*/false, UnderlyingTN);
     Changed = true;
   }
   return Changed;