diff --git a/hetzner-debian10-zfs-setup.sh b/hetzner-debian10-zfs-setup.sh
index 3f13c4b..b6ec624 100644
--- a/hetzner-debian10-zfs-setup.sh
+++ b/hetzner-debian10-zfs-setup.sh
@@ -723,7 +723,7 @@ chroot_execute 'cat << DKMS > /etc/dkms/zfs.conf
 # override for /usr/src/zfs-*/dkms.conf:
 # always rebuild initrd when zfs module has been changed
 # (either by a ZFS update or a new kernel version)
-REMAKE_INITRD='yes'
+REMAKE_INITRD="yes"
 DKMS'
 
 echo "======= installing OpenSSH and network tooling =========="
diff --git a/hetzner-debian11-zfs-setup.sh b/hetzner-debian11-zfs-setup.sh
index a914f32..ef7940c 100644
--- a/hetzner-debian11-zfs-setup.sh
+++ b/hetzner-debian11-zfs-setup.sh
@@ -724,7 +724,7 @@ chroot_execute 'cat << DKMS > /etc/dkms/zfs.conf
 # override for /usr/src/zfs-*/dkms.conf:
 # always rebuild initrd when zfs module has been changed
 # (either by a ZFS update or a new kernel version)
-REMAKE_INITRD='yes'
+REMAKE_INITRD="yes"
 DKMS'
 
 echo "======= installing OpenSSH and network tooling =========="
diff --git a/hetzner-ubuntu18-zfs-setup.sh b/hetzner-ubuntu18-zfs-setup.sh
index 54d7190..0651671 100644
--- a/hetzner-ubuntu18-zfs-setup.sh
+++ b/hetzner-ubuntu18-zfs-setup.sh
@@ -706,7 +706,7 @@ chroot_execute 'cat << DKMS > /etc/dkms/zfs.conf
 # override for /usr/src/zfs-*/dkms.conf:
 # always rebuild initrd when zfs module has been changed
 # (either by a ZFS update or a new kernel version)
-REMAKE_INITRD='yes'
+REMAKE_INITRD="yes"
 DKMS'
 
 echo "======= installing OpenSSH and network tooling =========="
diff --git a/hetzner-ubuntu20-zfs-setup.sh b/hetzner-ubuntu20-zfs-setup.sh
index a52e80e..77499ab 100644
--- a/hetzner-ubuntu20-zfs-setup.sh
+++ b/hetzner-ubuntu20-zfs-setup.sh
@@ -707,7 +707,7 @@ chroot_execute 'cat << DKMS > /etc/dkms/zfs.conf
 # override for /usr/src/zfs-*/dkms.conf:
 # always rebuild initrd when zfs module has been changed
 # (either by a ZFS update or a new kernel version)
-REMAKE_INITRD='yes'
+REMAKE_INITRD="yes"
 DKMS'
 
 echo "======= installing OpenSSH and network tooling =========="