diff --git a/files/chroot_build.sh b/files/chroot_build.sh
index 4293bb7..2396908 100755
--- a/files/chroot_build.sh
+++ b/files/chroot_build.sh
@@ -228,7 +228,7 @@ done
 
 echo >&2 "===]> Info: Remove unused applications ... "
 
-apt-get purge \
+apt-get purge -y \
   transmission-gtk \
   transmission-common \
   gnome-mahjongg \