diff --git a/cccli/command.py b/cccli/command.py
index 104fe780fb57846c907068da569897dcae5cf5c3..1e37145fe835eb699e1165179994a22ffb274205 100644
--- a/cccli/command.py
+++ b/cccli/command.py
@@ -162,7 +162,7 @@ class Command(object):
     def cmd_list(self, argv):
         '''List objects'''
         if len(argv) == 1:
-            argv.append("")
+            argv.append("a")
         items = self.cli.rpc.list(str.join("", argv[1:]))
         for item in items:
             pprint.pprint(item)