diff --git a/browse/test/memory-leak-reproducer.test.ts b/browse/test/memory-leak-reproducer.test.ts
index a857e8678..3ef93525c 100644
--- a/browse/test/memory-leak-reproducer.test.ts
+++ b/browse/test/memory-leak-reproducer.test.ts
@@ -97,6 +97,7 @@ describe('memory-leak reproducer: requestfinished does not materialize bodies',
       page.emit('request', {
         url: () => `https://example.invalid/asset/${i}`,
         method: () => 'GET',
+        isNavigationRequest: () => false,
       });
     }