diff --git a/shell/platform/darwin/ios/framework/Source/FlutterViewControllerTest.m b/shell/platform/darwin/ios/framework/Source/FlutterViewControllerTest.m
index 09ef7baa023fb..403e4e3625311 100644
--- a/shell/platform/darwin/ios/framework/Source/FlutterViewControllerTest.m
+++ b/shell/platform/darwin/ios/framework/Source/FlutterViewControllerTest.m
@@ -27,6 +27,9 @@ @interface MockEngine : NSObject
 @end
 
 @implementation MockEngine
+- (FlutterViewController*)viewController {
+  return nil;
+}
 - (void)setViewController:(FlutterViewController*)viewController {
   // noop
 }