diff --git a/apps/enp/views.py b/apps/enp/views.py
index 23f4f62f..6e1384f5 100644
--- a/apps/enp/views.py
+++ b/apps/enp/views.py
@@ -64,7 +64,7 @@ class DrainEquipViewSet(CustomListModelMixin, BulkCreateModelMixin, BulkDestroyM
     排口/设备关系
     """
 
-    perms_map = {"get": "*", "post:": "drain.update", "delete": "drain.update"}
+    perms_map = {"get": "*", "post": "drain.update", "delete": "drain.update"}
     queryset = DrainEquip.objects.all()
     serializer_class = DrainEquipSerializer
     select_related_fields = ["equipment", "drain"]