diff --git a/Tools/XcodeCapp/XcodeCapp/XcodeCapp.m b/Tools/XcodeCapp/XcodeCapp/XcodeCapp.m
index f6eb0249d..305662ec6 100644
--- a/Tools/XcodeCapp/XcodeCapp/XcodeCapp.m
+++ b/Tools/XcodeCapp/XcodeCapp/XcodeCapp.m
@@ -1730,6 +1730,7 @@ void fsevents_callback(ConstFSEventStreamRef streamRef,
 
 - (IBAction)checkProjectWithCappLint:(id)aSender
 {
+    [self clearErrors:self];
     [self checkCappLintForPath:self.projectPath];
 }