diff --git a/build/debian/build.sh b/build/debian/build.sh
index cf229aa..bd918dd 100755
--- a/build/debian/build.sh
+++ b/build/debian/build.sh
@@ -12,6 +12,7 @@
 	echo "-h         Print usage and this help message and exit."
 	echo "-a ARCH    Architecture of the image [default is aarch64]"
 	echo "-r         Release mode build"
+	echo "-w         Save temp work directory (for debugging)"
 }
 
 check_sudo() {
@@ -22,7 +23,7 @@
 }
 
 parse_options() {
-	while getopts "hra:" option; do
+	while getopts "a:hrw" option; do
 		case ${option} in
 			h)
 				show_help
@@ -40,6 +41,9 @@
 			r)
 				mode=release
 				;;
+			w)
+				save_workdir=1
+				;;
 			*)
 				echo "Invalid option: $OPTARG"
 				exit
@@ -213,7 +217,7 @@
 }
 
 clean_up() {
-	rm -rf "${workdir}"
+	[ "$save_workdir" -eq 0 ] || rm -rf "${workdir}"
 }
 
 set -e
@@ -229,6 +233,7 @@
 arch=aarch64
 debian_arch=arm64
 mode=debug
+save_workdir=0
 
 parse_options "$@"
 check_sudo