diff --git a/update/variables/action.py b/update/variables/action.py
index 2db4304..8e2de8e 100644
--- a/update/variables/action.py
+++ b/update/variables/action.py
@@ -31,4 +31,4 @@ class VariableAcUpdateSync(ReadonlyVariable):
         action = self.Get("cl_action")
         if action in ("sync",):
             return "on"
-        return ""
+        return "off"