diff --git a/clang/lib/Frontend/FrontendActions.cpp b/clang/lib/Frontend/FrontendActions.cpp
index 28416e7..dc830cb 100644
--- a/clang/lib/Frontend/FrontendActions.cpp
+++ b/clang/lib/Frontend/FrontendActions.cpp
@@ -928,7 +928,7 @@
     // 'expected' comments.
     if (CI.getDiagnosticOpts().VerifyDiagnostics) {
       // Make sure we don't emit new diagnostics!
-      CI.getDiagnostics().setSuppressAllDiagnostics();
+      CI.getDiagnostics().setSuppressAllDiagnostics(true);
       Preprocessor &PP = getCompilerInstance().getPreprocessor();
       PP.EnterMainSourceFile();
       Token Tok;