diff --git a/Makefile b/Makefile
index 8f6240e..90f08d5 100644
--- a/Makefile
+++ b/Makefile
@@ -9,16 +9,18 @@ default toplevel:
 android-bootimg android-recovery:
 	nix-build  $(NFLAGS) -A outputs.android.$@ -o $@
 
-update: toplevel android-bootimg
+update: toplevel
 	nix-copy-closure --to $(DEVICE) -v --include-outputs ./toplevel
 	ssh $(DEVICE) "nix-env --profile /nix/var/nix/profiles/system --set `readlink toplevel`  && /nix/var/nix/profiles/system/bin/switch-to-configuration switch"
+
+update-boot: update android-bootimg
 	cat android-bootimg | ssh $(DEVICE) "cat >/boot/boot.img"
 
-boot-in-system.img: default
+boot-in-system.img: android-bootimg
 	dd if=/dev/zero of=$@ bs=1M count=50
 	mkdir -p boot-in-system
 	-rm -f boot-in-system/boot.img
-	(cd boot-in-system && cp ../default/boot.img .)
+	(cd boot-in-system && cp ../android-bootimg ./boot.img)
 	mke2fs -d boot-in-system boot-in-system.img