diff --git a/src/plugin/callback_msg.rs b/src/plugin/callback_msg.rs
index 9a82adfec..9024349ff 100644
--- a/src/plugin/callback_msg.rs
+++ b/src/plugin/callback_msg.rs
@@ -80,6 +80,7 @@ pub(super) struct MsgToExtSupport {
 
 #[derive(Debug, Serialize)]
 struct PluginSignReq {
+    uuid: Vec<u8>,
     peer_id: String,
     plugin_id: String,
     version: String,
@@ -284,6 +285,7 @@ fn request_plugin_sign(id: String, msg_to_rustdesk: MsgToRustDesk) -> PluginRetu
         let sign_url = format!("{}/lic/web/api/plugin-sign", get_api_server());
         let client = reqwest::blocking::Client::new();
         let req = PluginSignReq {
+            uuid: hbb_common::get_uuid(),
             peer_id: crate::ui_interface::get_id(),
             plugin_id: id.clone(),
             version: signature_data.version,