diff --git a/build b/build
index bcd7322..07208c8 100755
--- a/build
+++ b/build
@@ -73,7 +73,7 @@ configure_gpiomem() {
 
 sudo=${WIRINGPI_SUDO-sudo}
 make="make -j $(( $(nproc) + 1 ))"
-hardware=$(fgrep Hardware /proc/cpuinfo | head -1 | awk '{ printf("%s %s %s\n", $3, $4, $5) }' | xargs)
+hardware=$(fgrep -a Hardware /proc/cpuinfo | head -1 | awk '{ printf("%s %s %s\n", $3, $4, $5) }' | xargs)
 
 if [ x$1 = "xclean" ]; then
   cd wiringPi
diff --git a/debian/odroid-wiringpi.postinst b/debian/odroid-wiringpi.postinst
index 640b9ca..87b0a52 100644
--- a/debian/odroid-wiringpi.postinst
+++ b/debian/odroid-wiringpi.postinst
@@ -9,7 +9,7 @@ msg() {
 case "$1" in
 	configure)
 		if [ -c "/dev/gpiomem" ] && [ "$(stat -c "%a %G" "/dev/gpiomem")" != "660"*"odroid" ]; then
-			hardware=$(fgrep Hardware /proc/cpuinfo | head -1 | awk '{ printf("%s %s %s\n", $3, $4, $5) }' | xargs)
+			hardware=$(fgrep -a Hardware /proc/cpuinfo | head -1 | awk '{ printf("%s %s %s\n", $3, $4, $5) }' | xargs)
 			case "$(echo $hardware | tr [:upper:] [:lower:])" in
 				*xu4)
 					cp -f /tmp/odroid-wiringpi/rules.d/99-odroid-wiringpi-exynos.rules /etc/udev/rules.d