diff --git a/typings/index.d.ts b/typings/index.d.ts
index e0f56cd..5820f6d 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -6395,9 +6395,9 @@ export interface WebSocketOptions {
 }
 
 export interface WebSocketProperties {
-  $os?: string;
-  $browser?: string;
-  $device?: string;
+  os?: string;
+  browser?: string;
+  device?: string;
 }
 
 export interface WidgetActivity {