diff --git a/board/raspberrypi/post-build.sh b/board/raspberrypi/post-build.sh
index 7eae14a885..5e5eb71100 100755
--- a/board/raspberrypi/post-build.sh
+++ b/board/raspberrypi/post-build.sh
@@ -4,6 +4,8 @@ set -u
 set -e
 
 # Add a console on tty1
-grep -qE '^tty1::' ${TARGET_DIR}/etc/inittab || \
-sed -i '/GENERIC_SERIAL/a\
+if [ -e ${TARGET_DIR}/etc/inittab ]; then
+    grep -qE '^tty1::' ${TARGET_DIR}/etc/inittab || \
+	sed -i '/GENERIC_SERIAL/a\
 tty1::respawn:/sbin/getty -L  tty1 0 vt100 # HDMI console' ${TARGET_DIR}/etc/inittab
+fi