diff --git a/extensions/msteams/src/setup-surface.test.ts b/extensions/msteams/src/setup-surface.test.ts
index 47a6f3a26f7..965797d3143 100644
--- a/extensions/msteams/src/setup-surface.test.ts
+++ b/extensions/msteams/src/setup-surface.test.ts
@@ -64,7 +64,7 @@ describe("msteams setup surface", () => {
 
     hasConfiguredMSTeamsCredentials.mockReturnValue(false);
     expect(
-      msteamsSetupWizard.status.resolveStatusLines({
+      msteamsSetupWizard.status.resolveStatusLines?.({
         cfg: { channels: { msteams: {} } },
       } as never),
     ).toEqual(["MS Teams: needs app credentials"]);