diff --git a/ckan/lib/cli.py b/ckan/lib/cli.py
index 3378bce73e9..389570b4921 100644
--- a/ckan/lib/cli.py
+++ b/ckan/lib/cli.py
@@ -697,7 +697,7 @@ class UserCmd(CkanCommand):
     '''
     summary = __doc__.split('\n')[0]
     usage = __doc__
-    max_args = 4
+    max_args = None
     min_args = 0
 
     def command(self):