diff --git a/include/image.mk b/include/image.mk
index a6ea8e5452..fd5e3f4b62 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -384,7 +384,8 @@ define Build/append-ubi
 		$(if $(KERNEL_IN_UBI),--kernel $(word 1,$^)) \
 		$(word 2,$^) \
 		$@.tmp \
-		-p $(BLOCKSIZE) -m $(PAGESIZE) -E 5
+		-p $(BLOCKSIZE) -m $(PAGESIZE) -E 5 \
+		$(if $(SUBPAGESIZE),-s $(SUBPAGESIZE))
 	cat $@.tmp >> $@
 	rm $@.tmp
 endef