diff --git a/qutebrowser/config/configexc.py b/qutebrowser/config/configexc.py
index 1444f79ab..7be1ccf2a 100644
--- a/qutebrowser/config/configexc.py
+++ b/qutebrowser/config/configexc.py
@@ -93,7 +93,8 @@ class ConfigErrorDesc:
 
     def __str__(self):
         return '{} - {}: {} '.format(self.text,
-                                     self.exception.__class__.__name__, self.exception)
+                                     self.exception.__class__.__name__,
+                                     self.exception)
 
     def with_text(self, text):
         """Get a new ConfigErrorDesc with the given text appended."""