diff --git a/thefuck/types.py b/thefuck/types.py
index 8c5770f4..5afcf2c4 100644
--- a/thefuck/types.py
+++ b/thefuck/types.py
@@ -122,7 +122,7 @@ class Rule(object):
     def __repr__(self):
         return 'Rule(name={}, match={}, get_new_command={}, ' \
                'enabled_by_default={}, side_effect={}, ' \
-               'priority={}, requires_output)'.format(
+               'priority={}, requires_output={})'.format(
                    self.name, self.match, self.get_new_command,
                    self.enabled_by_default, self.side_effect,
                    self.priority, self.requires_output)