--- a/Plugins/WizardPlugins/QRegExpWizard/QRegExpWizardCharactersDialog.py	Thu Mar 21 19:26:10 2019 +0100
+++ b/Plugins/WizardPlugins/QRegExpWizard/QRegExpWizardCharactersDialog.py	Thu Mar 21 19:27:42 2019 +0100
@@ -614,6 +614,8 @@
             else:
                 return formatIdentifier
         
+        return ""
+        
     def getCharacters(self):
         """
         Public method to return the character string assembled via the dialog.