diff --git a/tuto-pysdur/pgcd.py b/tuto-pysdur/pgcd.py
index 78f7496..e8cf145 100755
--- a/tuto-pysdur/pgcd.py
+++ b/tuto-pysdur/pgcd.py
@@ -123,7 +123,11 @@ if __name__ == "__main__":
     doctest.testmod()
 
     # SETUPS
-    ARGS = argparse_setup()
+    try:
+        ARGS = argparse_setup()
+    except SystemExit:
+        sys.exit()
+
     logging_setup(ARGS)
 
     # CHECKS INPUTS