diff --git a/zlibs/helpers b/zlibs/helpers
index 48ae294..07168ea 100644
--- a/zlibs/helpers
+++ b/zlibs/helpers
@@ -260,7 +260,7 @@ cd /
 apt-get --yes --force-yes autoremove
 rm -rf /debs
 EOF
-	chroot-script install-debs
+	chroot-script -d install-debs
 }
 
 chroot-script() {