diff --git a/frontend/src/views/Inbounds.vue b/frontend/src/views/Inbounds.vue
index 1b89c7d..5301cb0 100644
--- a/frontend/src/views/Inbounds.vue
+++ b/frontend/src/views/Inbounds.vue
@@ -236,7 +236,7 @@ const buildInboundsUsers = (inbound:InboundWithUser):Inbound => {
       // Remove flow in non tls VLESS
       if (inbound.type == InTypes.VLESS) {
         const vlessInbound = <VLESS>inbound
-        if (!vlessInbound.tls?.enabled) clientConfig["vless"].flow = undefined
+        if (!vlessInbound.tls?.enabled) delete(clientConfig["vless"].flow)
       }
       users.push(clientConfig[inbound.type])
     })