--- a/Helpviewer/OpenSearch/OpenSearchManager.py	Thu Mar 21 19:26:10 2019 +0100
+++ b/Helpviewer/OpenSearch/OpenSearchManager.py	Thu Mar 21 19:27:42 2019 +0100
@@ -168,7 +168,7 @@
         @return flag indicating success (boolean)
         """
         if not url.isValid():
-            return
+            return False
         
         from Helpviewer.HelpWindow import HelpWindow