Just use `dart test`, it's shorter
diff --git a/protoc_plugin/Makefile b/protoc_plugin/Makefile
index a7556e3..105acbd 100644
--- a/protoc_plugin/Makefile
+++ b/protoc_plugin/Makefile
@@ -96,7 +96,7 @@
 protos: $(PLUGIN_PATH) $(TEST_PROTO_LIBS)
 
 run-tests: protos
-	dart run test
+	dart test
 
 clean:
 	rm -rf benchmark/lib/generated