diff --git a/src/socket/socket.gateway.ts b/src/socket/socket.gateway.ts
index e2f6725..d0a8297 100644
--- a/src/socket/socket.gateway.ts
+++ b/src/socket/socket.gateway.ts
@@ -72,7 +72,7 @@ export class SocketGateway
       )}`,
     );
     to = getUuidByString('uci-pwa');
-    const userId = client.handshake.headers.channel + client.handshake.headers.userPhone;
+    const userId = (client.handshake.headers.channel as string) + (client.handshake.headers.userPhone as string);
     content.from = userId;
     this.appService.requestToAdapter({ content, to }, this.server);
     return {};