diff --git a/include/image.mk b/include/image.mk
index 287c679cfd..814e7dc5d1 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -304,6 +304,11 @@ define Build/append-rootfs
 	dd if=$(word 2,$^) $(if $(1),bs=$(1) conv=sync) >> $@
 endef
 
+define Build/pad-to
+	dd if=$@ of=$@.new bs=$(1) conv=sync
+	mv $@.new $@
+endef
+
 define Build/pad-rootfs
 	$(call prepare_generic_squashfs,$@ $(1))
 endef