diff --git a/src/commands/status.service-summary.test.ts b/src/commands/status.service-summary.test.ts
index 7d9348d6614..9bb98e5c9b7 100644
--- a/src/commands/status.service-summary.test.ts
+++ b/src/commands/status.service-summary.test.ts
@@ -17,7 +17,7 @@ function createService(overrides: Partial<GatewayService>): GatewayService {
 }
 
 function requireMockArg(mock: { mock: { calls: unknown[][] } }, label: string): unknown {
-  const call = mock.mock.calls.at(0);
+  const call = mock.mock.calls[0];
   if (!call) {
     throw new Error(`expected ${label} call`);
   }