diff --git a/scripts/image b/scripts/image
index 8cf6690bab..de6bef2a85 100755
--- a/scripts/image
+++ b/scripts/image
@@ -363,6 +363,14 @@ if [ "${1}" = "release" -o "${1}" = "mkimage" -o "${1}" = "noobs" ]; then
     cp ${ROOT}/README* ${RELEASE_DIR}/${NOOBS_DISTRO}
     cp ${ROOT}/CHANGELOG ${RELEASE_DIR}/${NOOBS_DISTRO}/release_notes.txt
 
+    if [ -n "${NOOBS_HEX}" ]; then
+      sed -e "s%@NOOBS_HEX@%${NOOBS_HEX}%g" \
+          -i ${RELEASE_DIR}/${NOOBS_DISTRO}/os.json
+    else
+      sed -e "/@NOOBS_HEX@/d" \
+          -i ${RELEASE_DIR}/${NOOBS_DISTRO}/os.json
+    fi
+
     sed -e "s%@DISTRONAME@%${DISTRONAME}%g" \
         -e "s%@PROJECT@%${DEVICE:-${PROJECT}}%g" \
         -e "s%@LIBREELEC_VERSION@%${LIBREELEC_VERSION}%g" \
@@ -371,7 +379,6 @@ if [ "${1}" = "release" -o "${1}" = "mkimage" -o "${1}" = "noobs" ]; then
         -e "s%@DESCRIPTION@%${DESCRIPTION}%g" \
         -e "s%@ROOT_PASSWORD@%${ROOT_PASSWORD}%g" \
         -e "s%@NOOBS_SUPPORTED_MODELS@%${NOOBS_SUPPORTED_MODELS}%g" \
-        -e "s%@NOOBS_HEX@%${NOOBS_HEX}%g" \
         -i ${RELEASE_DIR}/${NOOBS_DISTRO}/os.json
 
     sed -e "s%@DISTRONAME@%${DISTRONAME}%g" \