diff --git a/clang/lib/Sema/SemaInherit.cpp b/clang/lib/Sema/SemaInherit.cpp
index b2d9b88..398f388 100644
--- a/clang/lib/Sema/SemaInherit.cpp
+++ b/clang/lib/Sema/SemaInherit.cpp
@@ -204,8 +204,8 @@
     }
   }
   
-  Diag(Loc, diag::err_ambiguous_derived_to_base_conv,
-       Derived.getAsString(), Base.getAsString(), PathDisplayStr, Range);
+  Diag(Loc, diag::err_ambiguous_derived_to_base_conv)
+    << Derived.getAsString() << Base.getAsString() << PathDisplayStr << Range;
   return true;
 }