diff --git a/aprsd/aprsd.py b/aprsd/aprsd.py
index c97826e..7a0afb5 100644
--- a/aprsd/aprsd.py
+++ b/aprsd/aprsd.py
@@ -70,7 +70,7 @@ def main():
         completion, dev, healthcheck, list_plugins, listen, send_message,
         server, webchat,
     )
-    cli()
+    cli(auto_envvar_prefix="APRSD")
 
 
 def signal_handler(sig, frame):