diff --git a/clang/include/clang/Basic/DiagnosticLexKinds.td b/clang/include/clang/Basic/DiagnosticLexKinds.td
index c6d26a069f8b..26c0a20d2abf 100644
--- a/clang/include/clang/Basic/DiagnosticLexKinds.td
+++ b/clang/include/clang/Basic/DiagnosticLexKinds.td
@@ -229,8 +229,7 @@ def warn_pp_convert_rhs_to_positive : Warning<
 def ext_pp_import_directive : Extension<"#import is a language extension">,
   InGroup<DiagGroup<"import-preprocessor-directive-pedantic">>;
 def err_pp_import_directive_ms : Error<
-  "#import of type library is an unsupported Microsoft feature">,
-  InGroup<Microsoft>;
+  "#import of type library is an unsupported Microsoft feature">;
 
 def ext_pp_ident_directive : Extension<"#ident is a language extension">;
 def ext_pp_include_next_directive : Extension<