diff --git a/main/postmarketos-mkinitfs/APKBUILD b/main/postmarketos-mkinitfs/APKBUILD
index b0ec7b0b7..692293093 100644
--- a/main/postmarketos-mkinitfs/APKBUILD
+++ b/main/postmarketos-mkinitfs/APKBUILD
@@ -1,5 +1,5 @@
 pkgname=postmarketos-mkinitfs
-pkgver=0.7.15
+pkgver=0.7.16
 pkgrel=0
 pkgdesc="Tool to generate initramfs images for postmarketOS"
 url="https://postmarketos.org"
@@ -25,5 +25,5 @@ package() {
 }
 
 sha512sums="3b7d697381a45a6a165d195d25a26e71773794ebc4a0d8b425321e5bb68a02405028d9712848982b2573474b7b1ee2560091c41f7f51b9e2e962eeb5204a72aa  init.sh.in
-9632fe7960d72da7efe9b765de72600ed8c5e38441652d7687c03138b53347f09d9f9dd66b16405b8c46969d5ea672f30c00a861841e5cdc7249182e2fdf9b27  init_functions.sh
+39154fa1f4874d1bbe3b6fef20e15f6d353fd720a3b7a4fd2332bae7bff460a1546c7a220deaef1e10ed988731bceaefd2aaaee731961810728b511cd8fb8823  init_functions.sh
 77ed5cd5eed0156b3018ec9f9f68f97601f20f5d2aee2a4a7d2f5a51804212188f75f4f57b105034f016c9d1c02c4a46694bfa3e5fc27a013f7cb5a2a392ddff  mkinitfs.sh"
diff --git a/main/postmarketos-mkinitfs/init_functions.sh b/main/postmarketos-mkinitfs/init_functions.sh
index 057e59773..061d1d362 100644
--- a/main/postmarketos-mkinitfs/init_functions.sh
+++ b/main/postmarketos-mkinitfs/init_functions.sh
@@ -344,7 +344,7 @@ setup_directfb_tslib(){
 	# the touchscreen device from tslib (e.g. on the N900)
 	export DFBARGS="system=fbdev,no-cursor,disable-module=linux_input"
 	# shellcheck disable=SC2154
-	if [ ! -z "$deviceinfo_dev_touchscreen" ]; then
+	if [ -n "$deviceinfo_dev_touchscreen" ]; then
 		export TSLIB_TSDEVICE="$deviceinfo_dev_touchscreen"
 	fi
 }