diff --git a/src/core_modules/line_handler/core.py b/src/core_modules/line_handler/core.py
index 8e60edfa..aa862a03 100644
--- a/src/core_modules/line_handler/core.py
+++ b/src/core_modules/line_handler/core.py
@@ -167,7 +167,7 @@ def handle_437(event):
     _nick_in_use(event["server"])
 
 def handle_396(event):
-    username, sep, hostname = event["line"][1].rpartition("@")
+    username, sep, hostname = event["line"].args[1].rpartition("@")
     event["server"].hostname = hostname
     if sep:
         event["server"].username = username