diff --git a/testing/scenario_app/ios/Scenarios/ScenariosTests/AppLifecycleTests.m b/testing/scenario_app/ios/Scenarios/ScenariosTests/AppLifecycleTests.m
index 4598c04e7..2d405efc2 100644
--- a/testing/scenario_app/ios/Scenarios/ScenariosTests/AppLifecycleTests.m
+++ b/testing/scenario_app/ios/Scenarios/ScenariosTests/AppLifecycleTests.m
@@ -140,5 +140,13 @@
   XCTAssertEqualObjects(
       lifecycleEvents, expectedStates,
       @"AppLifecycleState transitions while presenting a second time not as expected");
+
+  // Dismantle.
+  [engine.lifecycleChannel setMessageHandler:nil];
+  [flutterVC dismissViewControllerAnimated:NO completion:nil];
+  flutterVC = nil;
+  [engine setViewController:nil];
+  [rootVC dismissViewControllerAnimated:NO completion:nil];
+  rootVC = nil;
 }
 @end