diff --git a/lib/Frontend/VerifyDiagnosticConsumer.cpp b/lib/Frontend/VerifyDiagnosticConsumer.cpp
index e55e755..1d9c196 100644
--- a/lib/Frontend/VerifyDiagnosticConsumer.cpp
+++ b/lib/Frontend/VerifyDiagnosticConsumer.cpp
@@ -527,6 +527,9 @@
 
   // Reset the buffer, we have processed all the diagnostics in it.
   Buffer.reset(new TextDiagnosticBuffer());
+  ED.Errors.clear();
+  ED.Warnings.clear();
+  ED.Notes.clear();
 }
 
 DiagnosticConsumer *