diff --git a/web/src/hooks/useSignaling.ts b/web/src/hooks/useSignaling.ts
index 388683b..b84534a 100644
--- a/web/src/hooks/useSignaling.ts
+++ b/web/src/hooks/useSignaling.ts
@@ -247,9 +247,9 @@ export function useSignaling(joinCode?: string) {
           break;
         case "pair-code-resolved": {
           // Store the groupId and reconnect to join the group room
-          const profileStore = useProfileStore.getState();
-          profileStore.setGroupId(msg.groupId);
-          // Reconnect so the hello message includes the new groupId
+          useProfileStore.getState().setGroupId(msg.groupId);
+          // Update the signaling client's profile so reconnect sends the new groupId
+          signalingRef.current?.updateProfile({ groupId: msg.groupId });
           signalingRef.current?.disconnect();
           setTimeout(() => signalingRef.current?.connect(), 500);
           break;
diff --git a/web/src/lib/signaling.ts b/web/src/lib/signaling.ts
index 79af95c..6c1249a 100644
--- a/web/src/lib/signaling.ts
+++ b/web/src/lib/signaling.ts
@@ -64,6 +64,10 @@ export class SignalingClient {
     };
   }
 
+  updateProfile(updates: Partial<ProfileData>): void {
+    this.profile = { ...this.profile, ...updates };
+  }
+
   send(msg: ClientMessage): void {
     if (this.ws?.readyState === WebSocket.OPEN) {
       this.ws.send(JSON.stringify(msg));