diff --git a/fs/iso9660/iso9660.mk b/fs/iso9660/iso9660.mk
index 35b0fe589e..b2f00fdfa8 100644
--- a/fs/iso9660/iso9660.mk
+++ b/fs/iso9660/iso9660.mk
@@ -46,7 +46,7 @@ endef
 ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_PREPARATION
 
 define ROOTFS_ISO9660_CMD
-	$(HOST_DIR)/usr/bin/genisoimage -R -b boot/grub/stage2_eltorito \
+	$(HOST_DIR)/usr/bin/genisoimage -J -R -b boot/grub/stage2_eltorito \
 		-no-emul-boot -boot-load-size 4 -boot-info-table \
 		-o $@ $(ISO9660_TARGET_DIR)
 endef