diff --git a/Makefile b/Makefile
index 16ed50fc5..8fe16a816 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ PLATFORM := linux/amd64,linux/arm64,linux/arm/v6
 # gokrazy image
 IMAGE_FILE := evcc_$(TAG_NAME).image
 IMAGE_ROOTFS := evcc_$(TAG_NAME).rootfs
-IMAGE_OPTIONS := -hostname evcc -http_port 8080 github.com/gokrazy/serial-busybox github.com/gokrazy/breakglass github.com/gokrazy/wifi github.com/evcc-io/evcc
+IMAGE_OPTIONS := -hostname evcc -http_port 8080 github.com/gokrazy/serial-busybox github.com/gokrazy/breakglass github.com/gokrazy/mkfs github.com/gokrazy/wifi github.com/evcc-io/evcc
 
 # deb
 PACKAGES = ./release
@@ -105,17 +105,14 @@ apt-release::
 	)
 
 # gokrazy image
-prepare-image::
+image::
 	go install github.com/gokrazy/tools/cmd/gokr-packer@main
 	mkdir -p flags/github.com/gokrazy/breakglass
 	echo "-forward=private-network" > flags/github.com/gokrazy/breakglass/flags.txt
 	mkdir -p buildflags/github.com/evcc-io/evcc
 	echo "$(BUILD_TAGS),gokrazy" > buildflags/github.com/evcc-io/evcc/buildflags.txt
 	echo "-ldflags=$(LD_FLAGS)" >> buildflags/github.com/evcc-io/evcc/buildflags.txt
-
-image::
 	gokr-packer -overwrite=$(IMAGE_FILE) -target_storage_bytes=1258299392 $(IMAGE_OPTIONS)
-	loop=$$(losetup --find --show -P $(IMAGE_FILE)); mkfs.ext4 $${loop}p4
 	gzip -f $(IMAGE_FILE)
 
 image-rootfs::