diff --git a/scripts/zephir/exec_script_group.py b/scripts/zephir/exec_script_group.py
index 803a709..4882bab 100644
--- a/scripts/zephir/exec_script_group.py
+++ b/scripts/zephir/exec_script_group.py
@@ -46,7 +46,7 @@ def argparser():
         script = sys.argv[3]
         return group_id, script, None
 
-    if sys.argv[4] in ['-p', '--params']:
+    if sys.argv[4] in ['-a', '--args']:
         varc = sys.argv[5]
         return group_id, script, params
 
@@ -95,11 +95,11 @@ def main():
         liste_serveurs = groups[group_id][1]
     if script is None:
         script = flushed_input("Script à executer : ")
-    if params is None:
-        params = flushed_input("Paramètres : ")
-
+        if params is None:
+            params = flushed_input("Paramètres : ")
 
 
+    if params is None: params = ""
     ret = proxy.uucp.exec_script(liste_serveurs, script, params)
 
     # on affiche les erreurs si nécessaire