diff --git a/jsonate/json_encoder.py b/jsonate/json_encoder.py
index b1cd4c2..5b771dc 100644
--- a/jsonate/json_encoder.py
+++ b/jsonate/json_encoder.py
@@ -102,8 +102,7 @@ def map_queryset(obj):
 # Managers are typically hidden fields, and must be specified via meta fields
 @register_typemap(Manager)
 def map_manager(obj):
-    qs = obj.get_queryset()
-    return qs
+    return obj.get_queryset()
 
 @register_typemap(Model)
 def map_model_instance(obj):