diff --git a/mods/legacy-initramfs/data/usr/local/bin/update-initramfs b/mods/legacy-initramfs/data/usr/local/bin/update-initramfs
index 527b2ca..e24c792 100755
--- a/mods/legacy-initramfs/data/usr/local/bin/update-initramfs
+++ b/mods/legacy-initramfs/data/usr/local/bin/update-initramfs
@@ -4,8 +4,8 @@ set -e
 for i in $(find /lib/modules -name "*.ko"); do
     if [ "$(file "$i"|grep ELF)" != "" ]; then
         >&2 echo "> $i ..."
-        xz -9 $i
-        mv $i.xz $i
+        xz -9 "$i"
+        mv "$i.xz" "$i"
     fi
 done
 /usr/sbin/update-initramfs $*