diff --git a/web/src/views/ApplicationConfig/Agent.tsx b/web/src/views/ApplicationConfig/Agent.tsx
index 8aab0540..15d4db5a 100644
--- a/web/src/views/ApplicationConfig/Agent.tsx
+++ b/web/src/views/ApplicationConfig/Agent.tsx
@@ -214,7 +214,7 @@ const Agent = forwardRef<AgentRef>((_props, ref) => {
         ...data.knowledge_retrieval,
         ...knowledgeRest,
         knowledge_bases: knowledge_bases.map(item => ({
-          kb_id: item.id,
+          kb_id: item.kb_id || item.id,
           ...(item.config || {})
         }))
       } as KnowledgeConfig : null,