diff --git a/argos/commands.py b/argos/commands.py
index 63b1bd9..a5418c3 100644
--- a/argos/commands.py
+++ b/argos/commands.py
@@ -38,7 +38,7 @@ def server():
 
 
 @cli.command()
-@click.argument("server", envvar="ARGOS_AGENT_SERVER_URL")
+@click.argument("server_url", envvar="ARGOS_AGENT_SERVER_URL")
 @click.argument("auth", envvar="ARGOS_AGENT_TOKEN")
 @click.option(
     "--max-tasks",