diff --git a/trio/_core/_parking_lot.py b/trio/_core/_parking_lot.py
index 66d3146793..09f59f0ba9 100644
--- a/trio/_core/_parking_lot.py
+++ b/trio/_core/_parking_lot.py
@@ -122,6 +122,7 @@ def _abort_func_for(self, task):
         def abort(_):
             del self._parked[task]
             return _core.Abort.SUCCEEDED
+
         return abort
 
     # XX this currently returns None