diff --git a/script/lib/update-stage0 b/script/lib/update-stage0
index bb2daa3d59..49d38c01ca 100755
--- a/script/lib/update-stage0
+++ b/script/lib/update-stage0
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-rm -r stage0 || true
+rm -rf stage0 || true
 # don't copy untracked files
 # `:!` is git glob flavor for exclude patterns
 for f in $(git ls-files src ':!:src/lake/*' ':!:src/Leanc.lean'); do