--- a/Toolbox/Startup.py	Thu Mar 21 19:26:10 2019 +0100
+++ b/Toolbox/Startup.py	Thu Mar 21 19:27:42 2019 +0100
@@ -173,7 +173,7 @@
     translations = ("qt", "eric6") + translationFiles
     loc = Preferences.getUILanguage()
     if loc is None:
-        return
+        return ""
 
     if loc == "System":
         loc = QLocale.system().name()