diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index 55e078f3180a2..5ef2ae3ee857f 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -2752,8 +2752,7 @@ CXXBaseSpecifier *Sema::CheckBaseSpecifier(CXXRecordDecl *Class,
       std::string Quals =
           BaseType.getQualifiers().getAsString(Context.getPrintingPolicy());
       Diag(BaseLoc, diag::warn_qual_base_type)
-          << Quals << std::count(Quals.begin(), Quals.end(), ' ') + 1
-          << BaseType;
+          << Quals << llvm::count(Quals, ' ') + 1 << BaseType;
       Diag(BaseLoc, diag::note_base_class_specified_here) << BaseType;
     }