diff --git a/main.py b/main.py
index ff18d4f..54be5a7 100644
--- a/main.py
+++ b/main.py
@@ -190,7 +190,9 @@ def main(parsed_args):
 
             print_message("Running allsCOLA finished.", 1, "control", verbose=parsed_args.verbose)
             
-    
+        case _:
+            raise ValueError(f"Unknown mode: {main_dict['mode']}")
+
     print_ending_module("control", verbose=parsed_args.verbose)