diff --git a/packages/server/src/MessageReceiver.ts b/packages/server/src/MessageReceiver.ts
index 1c9883b51..6a7401e0f 100644
--- a/packages/server/src/MessageReceiver.ts
+++ b/packages/server/src/MessageReceiver.ts
@@ -65,7 +65,7 @@ export class MessageReceiver {
           category: 'Update',
         })
 
-        applyAwarenessUpdate(document.awareness, message.readVarUint8Array(), connection)
+        applyAwarenessUpdate(document.awareness, message.readVarUint8Array(), connection?.webSocket)
 
         break
       }