diff --git a/hooks/busybox b/hooks/busybox
index 7df643c..7bd15e2 100755
--- a/hooks/busybox
+++ b/hooks/busybox
@@ -1,4 +1,4 @@
-#!/usr/bin/env sh
+#!/usr/bin/env bash
 
 ###############################################################
 # Build Static Busybox
@@ -39,7 +39,7 @@ elif ldd $ECLODIR_STATIC/busybox >/dev/null 2>&1 ; then
 fi
 
 cp -a "$ECLODIR_STATIC"/busybox "$BUSYBOX_BIN"
-BUSY_BIN=$(type $BUSYBOX_BIN)
+BUSY_BIN=$(type -p $BUSYBOX_BIN)
 BUSY_APPS=/tmp/busybox-apps
 $BUSY_BIN --list-full > $BUSY_APPS
 
diff --git a/hooks/udev b/hooks/udev
index a39f7d3..535dbd9 100755
--- a/hooks/udev
+++ b/hooks/udev
@@ -7,7 +7,7 @@
 [ -x /lib/udev/udevd ] && UDEVD=/lib/udev/udevd
 [ -x /lib/systemd/systemd-udevd ] && UDEVD=/lib/systemd/systemd-udevd
 
-[ -z "$UDEVD" ] || die "Cannot find udevd nor systemd-udevd"
+[ -n "$UDEVD" ] || die "Cannot find udevd nor systemd-udevd"
 
 mkdir -p etc/udev lib/udev/rules.d lib/systemd