diff --git a/firmware/Makefile b/firmware/Makefile
index 21aa3f9..1831745 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -1,7 +1,9 @@
 .PHONY: cpu clean
 
 DEVICETREE_GEN_DIR=.
-cpu: soc.py
+
+all: build/digilent_arty/digilent_arty.bit overlay.dts overlay.config pin_io.h
+build/digilent_arty/digilent_arty.bit: soc.py
 	python3 soc.py
 clean:
 	rm -rf build csr.json overlay.config overlay.dts pin_io.h
diff --git a/software/Makefile b/software/Makefile
index ca3658a..6318517 100644
--- a/software/Makefile
+++ b/software/Makefile
@@ -1,4 +1,4 @@
-kernel: src/*.c ../firmware/overlay.dts ../firmware/io_pins.h
+build/zephyr/zephyr.bin: src/*.c ../firmware/overlay.dts ../firmware/pin_io.h
 	mkdir -p build
 	cd build && cmake $$(cat ../../firmware/overlay.config) -DDTC_OVERLAY_FILE=../firmware/overlay.dts -DBOARD=litex_vexriscv .. && make -j7
 clean: