diff --git a/usr/share/archboot/installer/setup b/usr/share/archboot/installer/setup
index f67f43643..fe6338db0 100755
--- a/usr/share/archboot/installer/setup
+++ b/usr/share/archboot/installer/setup
@@ -106,7 +106,7 @@ pkgdesc () {
 #
 chroot_mount()
 {
-    [[ -e "${DESTDIR}/proc" ]] || mkdir -m 555"${DESTDIR}/proc"
+    [[ -e "${DESTDIR}/proc" ]] || mkdir -m 555 "${DESTDIR}/proc"
     [[ -e "${DESTDIR}/sys" ]] || mkdir -m 555 "${DESTDIR}/sys"
     [[ -e "${DESTDIR}/dev" ]] || mkdir -m 755 "${DESTDIR}/dev"
     mount --make-runbindable /sys/fs/cgroup