diff --git a/packages/flutter_tools/lib/src/artifacts.dart b/packages/flutter_tools/lib/src/artifacts.dart
index 33682b6d21b..40f8a2065a8 100644
--- a/packages/flutter_tools/lib/src/artifacts.dart
+++ b/packages/flutter_tools/lib/src/artifacts.dart
@@ -176,7 +176,6 @@ class CachedArtifacts extends Artifacts {
         assert(false, 'Artifact $artifact not available for platform $platform.');
         return null;
     }
-    return null;
   }
 
   String _getEngineArtifactsPath(TargetPlatform platform, [BuildMode mode]) {