diff --git a/src/lib/clients/Livechat.ts b/src/lib/clients/Livechat.ts
index 863ae74f..5c8f5fbd 100644
--- a/src/lib/clients/Livechat.ts
+++ b/src/lib/clients/Livechat.ts
@@ -102,7 +102,9 @@ export default class LivechatClient extends LivechatRest implements ISocket {
   }
 
   async setUpConnection () {
-    const { token } = this.credentials
-    return (await this.socket as IDriver).methodCall('livechat:setUpConnection', { token })
+    const { token } = this.credentials,
+      isMobile = !!window?.matchMedia('(max-width: 500px)')?.matches;
+  
+    return (await this.socket as IDriver).methodCall('livechat:setUpConnection', { token, isMobile })
   }
 }