diff --git a/packages/flutter_tools/lib/src/artifacts.dart b/packages/flutter_tools/lib/src/artifacts.dart
index f910386..53edf6e 100644
--- a/packages/flutter_tools/lib/src/artifacts.dart
+++ b/packages/flutter_tools/lib/src/artifacts.dart
@@ -292,7 +292,7 @@
   }
 
   String _genSnapshotPath() {
-    const List<String> clangDirs = const <String>['.', 'clang_x86', 'clang_x64', 'clang_i386'];
+    const List<String> clangDirs = <String>['.', 'clang_x86', 'clang_x64', 'clang_i386'];
     final String genSnapshotName = _artifactToFileName(Artifact.genSnapshot);
     for (String clangDir in clangDirs) {
       final String genSnapshotPath = fs.path.join(engineOutPath, clangDir, genSnapshotName);