diff --git a/apps/perms/api/mixin.py b/apps/perms/api/mixin.py
index 24bd9abd2..9c726691f 100644
--- a/apps/perms/api/mixin.py
+++ b/apps/perms/api/mixin.py
@@ -174,6 +174,8 @@ class GrantAssetsMixin(LabelFilterMixin):
                 system_user = system_users_map.get(sid)
                 if not system_user:
                     continue
+                if not asset.has_protocol(system_user.protocol):
+                    continue
                 system_user.actions = action
                 system_users_granted.append(system_user)
             asset.system_users_granted = system_users_granted
diff --git a/apps/perms/api/user_permission.py b/apps/perms/api/user_permission.py
index 0746252cb..13ee07951 100644
--- a/apps/perms/api/user_permission.py
+++ b/apps/perms/api/user_permission.py
@@ -256,6 +256,8 @@ class UserGrantedNodesWithAssetsApi(UserPermissionCacheMixin, NodesWithUngroupMi
                     system_user = _system_users_map.get(system_user_id)
                     if not system_user:
                         continue
+                    if not asset.has_protocol(system_user.protocol):
+                        continue
                     system_user.actions = action
                     system_user_granted.append(system_user)
                 asset.system_users_granted = system_user_granted