diff --git a/run b/run
index 2da64dd..4fdc7d1 100755
--- a/run
+++ b/run
@@ -52,6 +52,9 @@ STEP00_B=3ba916584db5485c38ebf2390e8d22bc6d81bf8e
 #
 STEP00_C=28514476ef8c824c3d189d98f23d0f8d23e496ea
 step00() {
+  git reset --hard
+  git clean -ffxd
+
   git checkout $STEP00_A
 
   git revert --no-edit $STEP00_B