diff --git a/extensions/voice-call/src/media-stream.test.ts b/extensions/voice-call/src/media-stream.test.ts
index ca97f288614..18eaf5113c4 100644
--- a/extensions/voice-call/src/media-stream.test.ts
+++ b/extensions/voice-call/src/media-stream.test.ts
@@ -557,7 +557,6 @@ describe("MediaStreamHandler security hardening", () => {
     expect(secondSocket.write).toHaveBeenCalledOnce();
     expect(secondSocket.destroy).toHaveBeenCalledOnce();
 
-    expect(upgradeCallback).not.toBeNull();
     const completeUpgrade = upgradeCallback as ((ws: WebSocket) => void) | null;
     if (!completeUpgrade) {
       throw new Error("Expected upgrade callback to be registered");