diff --git a/meshbook.py b/meshbook.py
index cc2c02f..d58788e 100644
--- a/meshbook.py
+++ b/meshbook.py
@@ -103,10 +103,12 @@ async def main():
             meshbook["group"] = args.group
             if "device" in meshbook:
               del meshbook["device"]
+              del meshbook["devices"]
         elif args.device != "":
             meshbook["device"] = args.device
             if "group" in meshbook:
               del meshbook["group"]
+              del meshbook["groups"]
 
         '''
         The following section mainly displays used variables and first steps of the program to the Console.