diff --git a/files/chroot_build.sh b/files/chroot_build.sh
index 00f52c6..ba33da1 100755
--- a/files/chroot_build.sh
+++ b/files/chroot_build.sh
@@ -36,7 +36,8 @@ echo >&2 "===]> Info: Install sound configuration and Wi-Fi script... "
 
 apt-get install -y -qq -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" \
   apple-t2-audio-config \
-  apple-firmware-script
+  apple-firmware-script \
+  dmg2img
 
 echo >&2 "===]> Info: Configure drivers... "