diff --git a/include/clang/Basic/DiagnosticSemaKinds.td b/include/clang/Basic/DiagnosticSemaKinds.td
index 59a2c19a3a385a66e4bce14003da9fc6a9c0abc7..fcc87011c7b12f0f6aec071a31ec125e9d0013b1 100644
--- a/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/include/clang/Basic/DiagnosticSemaKinds.td
@@ -1855,8 +1855,6 @@ def err_format_attribute_result_not : Error<"function does not return %0">;
 def err_format_attribute_implicit_this_format_string : Error<
   "format attribute cannot specify the implicit this argument as the format "
   "string">;
-def err_common_not_supported_cplusplus : Error<
-  "common attribute is not supported in C++">;
 def err_init_method_bad_return_type : Error<
   "init methods must return an object pointer type, not %0">;
 def err_attribute_invalid_size : Error<
diff --git a/lib/Sema/SemaDeclAttr.cpp b/lib/Sema/SemaDeclAttr.cpp
index 4a8b5289317ef253946a2bef8a9eda6ac810209e..2fc491b7589bdbb90d241d28062637a8cae8c5c2 100644
--- a/lib/Sema/SemaDeclAttr.cpp
+++ b/lib/Sema/SemaDeclAttr.cpp
@@ -1854,7 +1854,8 @@ static void handleNoCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) {
 
 static void handleCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) {
   if (S.LangOpts.CPlusPlus) {
-    S.Diag(Attr.getLoc(), diag::err_common_not_supported_cplusplus);
+    S.Diag(Attr.getLoc(), diag::err_attribute_not_supported_in_lang)
+      << Attr.getName() << AttributeLangSupport::Cpp;
     return;
   }
 
diff --git a/test/SemaCXX/attr-common.cpp b/test/SemaCXX/attr-common.cpp
index 58b30133f52f11e6ac898418a1bf9caeace7d074..fb98639d1b2ce317630f3780540a446f365c8d28 100644
--- a/test/SemaCXX/attr-common.cpp
+++ b/test/SemaCXX/attr-common.cpp
@@ -1,3 +1,3 @@
 // RUN: %clang_cc1 -fsyntax-only -verify %s
 
-__attribute__((common)) int x; // expected-error {{common attribute is not supported in C++}}
+__attribute__((common)) int x; // expected-error {{'common' attribute is not supported in C++}}