#18681: Fix a NameError in imp.reload() (noticed by Weizhao Li).
diff --git a/Lib/imp.py b/Lib/imp.py
index 40869f5..34b6c54 100644
--- a/Lib/imp.py
+++ b/Lib/imp.py
@@ -267,7 +267,7 @@
         parent_name = name.rpartition('.')[0]
         if parent_name and parent_name not in sys.modules:
             msg = "parent {!r} not in sys.modules"
-            raise ImportError(msg.format(parentname), name=parent_name)
+            raise ImportError(msg.format(parent_name), name=parent_name)
         return module.__loader__.load_module(name)
     finally:
         try: