diff --git a/mongoengine/common.py b/mongoengine/common.py
index 2e64130f..bde7e78c 100644
--- a/mongoengine/common.py
+++ b/mongoengine/common.py
@@ -56,4 +56,3 @@ def _import_class(cls_name):
         _class_registry_cache[cls] = getattr(module, cls)
 
     return _class_registry_cache.get(cls_name)
-