diff --git a/hb_server/apps/wpm/views.py b/hb_server/apps/wpm/views.py
index 9f44265..b93250c 100644
--- a/hb_server/apps/wpm/views.py
+++ b/hb_server/apps/wpm/views.py
@@ -539,7 +539,7 @@ class OperationViewSet(ListModelMixin, RetrieveModelMixin, CreateModelMixin, Upd
 
     def get_serializer_class(self):
         if self.action == 'retrieve':
-            return OperationDetailSerializer
+            return OperationListSerializer
         elif self.action == 'create':
             return OperationCreateSerializer
         elif self.action == 'update':