diff --git a/apollo-portal/src/main/java/com/ctrip/framework/apollo/openapi/service/ConsumerService.java b/apollo-portal/src/main/java/com/ctrip/framework/apollo/openapi/service/ConsumerService.java
index 234fb210565..2ddcf8ecdea 100644
--- a/apollo-portal/src/main/java/com/ctrip/framework/apollo/openapi/service/ConsumerService.java
+++ b/apollo-portal/src/main/java/com/ctrip/framework/apollo/openapi/service/ConsumerService.java
@@ -146,6 +146,7 @@ public Consumer getConsumerByConsumerId(long consumerId) {
     return consumerRepository.findById(consumerId).orElse(null);
   }
 
+  @Transactional
   public List<ConsumerRole> assignNamespaceRoleToConsumer(String token, String appId, String namespaceName) {
     return assignNamespaceRoleToConsumer(token, appId, namespaceName, null);
   }