diff --git a/lark/parsers/lalr_parser.py b/lark/parsers/lalr_parser.py
index 8fa56f5..9b8ff10 100644
--- a/lark/parsers/lalr_parser.py
+++ b/lark/parsers/lalr_parser.py
@@ -78,6 +78,7 @@ class _Parser:
                 else:
                     reduce(arg)
 
+        token = '<EOF>'
         while True:
             _action, arg = get_action('$END')
             if _action is Shift: