diff --git a/build-rootfs.sh b/build-rootfs.sh
index 35e313c..f3cb17b 100644
--- a/build-rootfs.sh
+++ b/build-rootfs.sh
@@ -228,6 +228,12 @@ rm -rf "$ROOTFS/var/lib/apt/lists/*"
 rm -rf "$ROOTFS/tmp/*"
 
 
+echo "[+] Cleaning mounts before packaging"
+
+umount -lf "$ROOTFS/dev/pts" || true
+umount -lf "$ROOTFS/dev" || true
+umount -lf "$ROOTFS/proc" || true
+umount -lf "$ROOTFS/sys" || true
 
 echo "[+] Creating artifact"