diff --git a/evennia/commands/default/system.py b/evennia/commands/default/system.py
index fe1ec1e0ea..c22b38bd76 100644
--- a/evennia/commands/default/system.py
+++ b/evennia/commands/default/system.py
@@ -429,7 +429,7 @@ class CmdPlayers(MuxCommand):
         "List the players"
 
         caller = self.caller
-        if self.args and self.args.is_digit():
+        if self.args and self.args.isdigit():
             nlim = int(self.args)
         else:
             nlim = 10