diff --git a/update/cl_update.py b/update/cl_update.py
index 67ec6cb..cc9f362 100644
--- a/update/cl_update.py
+++ b/update/cl_update.py
@@ -92,4 +92,3 @@ class Update:
         """
         self.initVars(datavars)
         return bool(self.applyTemplates())
-        return True
diff --git a/update/variables/update.py b/update/variables/update.py
index 33f3763..e8034d3 100644
--- a/update/variables/update.py
+++ b/update/variables/update.py
@@ -39,17 +39,21 @@ class VariableClUpdateWorld(Variable):
     List of action update world, rebuild world, 
     """
     type = "choice"
-    opt = ["--world"]
+    opt = ["--(action)-world"]
     value = ""
     syntax = "--{choice}-world"
     metavalue = 'ACTION'
+    untrusted = True
 
     def init(self):
         self.help = "'update' - " +_("update world file") + \
                     ",\n'rebuild' - "+ _("rebuild world file")
-        self.label = _("World")
+        self.label = _("World action")
+
+    def check(self,value):
+        if not value:
+           raise VariableError(_("Select action with world"))
 
     def choice(self):
-        return [("",_("None")),
-                ("update",_("Update world")),
+        return [("update",_("Update world")),
                 ("rebuild","Rebuild world")]