diff --git a/fs/ubifs/ubifs.mk b/fs/ubifs/ubifs.mk
index 7b2b0fb2cc..4f45acdc4a 100644
--- a/fs/ubifs/ubifs.mk
+++ b/fs/ubifs/ubifs.mk
@@ -4,7 +4,10 @@
 #
 ################################################################################
 
-UBIFS_OPTS := -e $(BR2_TARGET_ROOTFS_UBIFS_LEBSIZE) -c $(BR2_TARGET_ROOTFS_UBIFS_MAXLEBCNT) -m $(BR2_TARGET_ROOTFS_UBIFS_MINIOSIZE)
+UBIFS_OPTS = \
+	-e $(BR2_TARGET_ROOTFS_UBIFS_LEBSIZE) \
+	-c $(BR2_TARGET_ROOTFS_UBIFS_MAXLEBCNT) \
+	-m $(BR2_TARGET_ROOTFS_UBIFS_MINIOSIZE)
 
 ifeq ($(BR2_TARGET_ROOTFS_UBIFS_RT_ZLIB),y)
 UBIFS_OPTS += -x zlib