diff --git a/target/image/aruba/Makefile b/target/image/aruba/Makefile
index 1d2aebfb1..09aa8eabd 100644
--- a/target/image/aruba/Makefile
+++ b/target/image/aruba/Makefile
@@ -33,8 +33,7 @@ endef
 define Image/Build/jffs2-64k
 	@dd if=$(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL).ari of=$(KDIR)/image.tmp bs=655360 conv=sync
 	@cat $(KDIR)/root.$(1) >> $(KDIR)/image.tmp
-	@dd if=$(KDIR)/image.tmp of=$(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(patsubst jffs2-%,jffs2,$(1)).bin bs=3604480 conv=sync
-	@rm -f $(KDIR)/image.tmp
+	mv $(KDIR)/image.tmp $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(patsubst jffs2-%,jffs2,$(1)).bin
 endef
 
 define Image/Build