diff --git a/dev/devicelab/lib/tasks/microbenchmarks.dart b/dev/devicelab/lib/tasks/microbenchmarks.dart
index 8cbe5816e3..0f37ad3918 100644
--- a/dev/devicelab/lib/tasks/microbenchmarks.dart
+++ b/dev/devicelab/lib/tasks/microbenchmarks.dart
@@ -61,7 +61,6 @@ TaskFunction createMicrobenchmarkTask() {
 }
 
 Future<Process> _startFlutter({
-  String command = 'run',
   List<String> options = const <String>[],
   bool canFail = false,
   Map<String, String> environment,