diff --git a/install.sh b/install.sh
index 5e06f39..2b64d10 100644
--- a/install.sh
+++ b/install.sh
@@ -350,7 +350,7 @@ fi
 
 echo 'zram' > /mnt/etc/modules-load.d/zram.conf
 echo 'options zram num_devices=1' > /mnt/etc/modprobe.d/zram.conf
-echo 'KERNEL=="zram0", ATTR{disksize}="'${ZRAMSIZE}'M" RUN="/usr/bin/mkswap /dev/zram0", TAG+="systemd"' > /mnt/etc/udev/rules.d/99-zram.rules
+echo 'KERNEL=="zram0", ATTR{disksize}="'"${ZRAMSIZE}"'M" RUN="/usr/bin/mkswap /dev/zram0", TAG+="systemd"' > /mnt/etc/udev/rules.d/99-zram.rules
 echo '# ZRAM' >> /mnt/etc/fstab
 echo '/dev/zram0 					none 		swap 		defaults 0 0' >> /mnt/etc/fstab