diff --git a/makechrootpkg.in b/makechrootpkg.in
index d81be84..8e8e4f5 100644
--- a/makechrootpkg.in
+++ b/makechrootpkg.in
@@ -38,6 +38,7 @@ usage() {
 	echo 'Flags:'
 	echo '-h         This help'
 	echo '-c         Clean the chroot before building'
+	echo '-C <dir>   Set pacman cache to pass to arch-nspawn'
 	echo '-d <dir>   Bind directory into build chroot as read-write'
 	echo '-D <dir>   Bind directory into build chroot as read-only'
 	echo '-u         Update the working copy of the chroot before building'
@@ -325,12 +326,13 @@ main() {
 	[[ -z "$copy" || $copy = root ]] && copy=copy
 	src_owner=${SUDO_USER:-$USER}
 
-	while getopts 'hcur:I:l:nTD:d:U:' arg; do
+	while getopts 'hcuC:r:I:l:nTD:d:U:' arg; do
 		case "$arg" in
 			c) clean_first=true ;;
 			D) bindmounts_ro+=("--bind-ro=$OPTARG") ;;
 			d) bindmounts_rw+=("--bind=$OPTARG") ;;
 			u) update_first=true ;;
+			C) cache_dir="$OPTARG" ;;
 			r) passeddir="$OPTARG" ;;
 			I) install_pkgs+=("$OPTARG") ;;
 			l) copy="$OPTARG" ;;
@@ -352,6 +354,10 @@ main() {
 	[[ ! -d $chrootdir ]] && die "No chroot dir defined, or invalid path '%s'" "$passeddir"
 	[[ ! -d $chrootdir/root ]] && die "Missing chroot dir root directory. Try using: mkarchroot %s/root base-devel" "$chrootdir"
 
+	if [ -n "$cache_dir" ]; then
+		cache_dir="-c $cache_dir"
+	fi
+
 	if [[ ${copy:0:1} = / ]]; then
 		copydir=$copy
 	else
@@ -415,7 +421,7 @@ main() {
 
 	prepare_chroot "$copydir" "$USER_HOME" "$keepbuilddir" "$run_namcap"
 
-	if arch-nspawn "$copydir" \
+	if arch-nspawn $cache_dir "$copydir" \
 		--bind="$PWD:/startdir" \
 		--bind="$SRCDEST:/srcdest" \
 		"${bindmounts_ro[@]}" "${bindmounts_rw[@]}" \