diff --git a/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp b/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp
--- a/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp
+++ b/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp
@@ -478,7 +478,7 @@
       llvm::errs() << WErrorCount << " warning" << Plural << " treated as error"
                    << Plural << "\n";
     }
-    return WErrorCount;
+    return 1;
   }
 
   if (FoundErrors) {