diff --git a/lib/msal-browser/test/interaction_handler/SilentHandler.spec.ts b/lib/msal-browser/test/interaction_handler/SilentHandler.spec.ts
index afb7aae8fa..b8f2f4eb5e 100644
--- a/lib/msal-browser/test/interaction_handler/SilentHandler.spec.ts
+++ b/lib/msal-browser/test/interaction_handler/SilentHandler.spec.ts
@@ -37,6 +37,7 @@ describe("SilentHandler.ts Unit Tests", () => {
             removePerformanceCallback: jest.fn(),
             addPerformanceCallback: jest.fn(),
             emitEvents: jest.fn(),
+            startPerformanceMeasurement: jest.fn(),
             generateId: jest.fn(),
             calculateQueuedTime: jest.fn(),
             addQueueMeasurement: jest.fn(),