diff --git a/packages/flutter_tools/lib/src/resident_runner.dart b/packages/flutter_tools/lib/src/resident_runner.dart
index 3ef8931e5c7..e9e9e69a801 100644
--- a/packages/flutter_tools/lib/src/resident_runner.dart
+++ b/packages/flutter_tools/lib/src/resident_runner.dart
@@ -35,7 +35,7 @@ abstract class ResidentRunner {
     String projectAssets,
   }) {
     _mainPath = findMainDartFile(target);
-    _projectRootPath = projectRootPath ?? fs.currentDirectory;
+    _projectRootPath = projectRootPath ?? fs.currentDirectory.path;
     _packagesFilePath =
         packagesFilePath ?? path.absolute(PackageMap.globalPackagesPath);
     if (projectAssets != null)