diff --git a/V2rayU/ConfigWindow.swift b/V2rayU/ConfigWindow.swift
index 109eec1..a87b2ea 100644
--- a/V2rayU/ConfigWindow.swift
+++ b/V2rayU/ConfigWindow.swift
@@ -528,7 +528,7 @@ class ConfigWindowController: NSWindowController, NSWindowDelegate, NSTabViewDel
 
         // grpc
         self.grpcServiceName.stringValue = v2rayConfig.streamGrpc.serviceName
-        self.grpcUseragent.stringValue = v2rayConfig.streamGrpc.user_agent
+        self.grpcUseragent.stringValue = v2rayConfig.streamGrpc.user_agent ?? ""
         self.grpcMulti.intValue = v2rayConfig.streamGrpc.multiMode ? 1 : 0
 
         // ========================== stream end =======================
diff --git a/V2rayU/Import.swift b/V2rayU/Import.swift
index 1a581bb..635cfdc 100644
--- a/V2rayU/Import.swift
+++ b/V2rayU/Import.swift
@@ -359,7 +359,7 @@ class ImportUri {
 
         // grpc
         v2ray.streamGrpc.serviceName = vmess.path
-        v2ray.streamGrpc.multiMode = vmess.type == "multi" // v2rayN
+        v2ray.streamGrpc.multiMode = vmess.grpcMode == "multi" // v2rayN
 
         // tcp
         v2ray.streamTcp.header.type = vmess.type
diff --git a/V2rayU/Uri.swift b/V2rayU/Uri.swift
index 34c9600..4a253c1 100644
--- a/V2rayU/Uri.swift
+++ b/V2rayU/Uri.swift
@@ -519,6 +519,7 @@ class VlessUri {
     var fp: String = "" // fingerprint
     var pbk: String = "" // reality public key
     var sid: String = "" // reality shortId
+    var grpcMode:String = ""
 
     // vless://f2a5064a-fabb-43ed-a2b6-8ffeb970df7f@00.com:443?flow=xtls-rprx-splite&encryption=none&security=xtls&sni=aaaaa&type=http&host=00.com&path=%2fvl#vless1
     func encode() -> String {
@@ -567,6 +568,9 @@ class VlessUri {
                 break
             case "flow":
                 self.flow = item.value as! String
+                if self.flow.isEmpty {
+                    self.flow = "xtls-rprx-vision"
+                }
                 break
             case "encryption":
                 self.encryption = item.value as! String
@@ -598,6 +602,12 @@ class VlessUri {
             case "sid":
                 self.sid = item.value as! String
                 break
+            case "serviceName":
+                self.path = item.value as! String
+                break
+            case "mode":
+                self.grpcMode = item.value as! String
+                break
             default:
                 break
             }
diff --git a/V2rayU/v2ray/v2rayStream.swift b/V2rayU/v2ray/v2rayStream.swift
index 90c3df4..5e6be77 100644
--- a/V2rayU/v2ray/v2rayStream.swift
+++ b/V2rayU/v2ray/v2rayStream.swift
@@ -205,9 +205,10 @@ struct QuicSettingHeader: Codable {
 }
 
 struct GrpcSettings: Codable {
+    var authority: String?
     var serviceName: String = ""
     var multiMode: Bool = false
-    var user_agent: String = ""
+    var user_agent: String?
     var idle_timeout: Int = 60
     var health_check_timeout: Int = 60
     var permit_without_stream: Bool = false