diff --git a/proxy/vmess/vmess_test.go b/proxy/vmess/vmess_test.go
index d70dd3ec..8a54ca84 100644
--- a/proxy/vmess/vmess_test.go
+++ b/proxy/vmess/vmess_test.go
@@ -31,7 +31,7 @@ func TestVMessInAndOut(t *testing.T) {
 		},
 		OutboundConfigValue: &mocks.ConnectionConfig{
 			ProtocolValue: "vmess",
-			ContentValue:  []byte("{\"vnext\":[{\"address\": \"127.0.0.1\", \"port\": 13829, \"users\":[{\"id\": \"ad937d9d-6e23-4a5a-ba23-bce5092a7c51\"}]}]}"),
+			ContentValue:  []byte("{\"vnext\":[{\"address\": \"127.0.0.1\", \"network\": \"tcp\", \"port\": 13829, \"users\":[{\"id\": \"ad937d9d-6e23-4a5a-ba23-bce5092a7c51\"}]}]}"),
 		},
 	}
 
diff --git a/release/config/out_vmess.json b/release/config/out_vmess.json
index 4675cc8e..3b6ec06b 100644
--- a/release/config/out_vmess.json
+++ b/release/config/out_vmess.json
@@ -5,7 +5,8 @@
       "port": 27183,
       "users": [
         {"id": "ad937d9d-6e23-4a5a-ba23-bce5092a7c51"}
-      ]
+      ],
+      "network": "tcp"
     }
   ]
 }