diff --git a/Makefile b/Makefile
index 8a738cb..3548180 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,5 @@
-fpga_config: fpga_config.rs
-	openocd -f openocd/openocd.cfg -f openocd/fpga-config.cfg
-
-fpga_config.rs: top.bin
-	cargo build --example fpga_config
-
-top.bin:
-	python3 migen/fpga_config.py
+fpga_config: main.rs
+	openocd -f openocd/openocd.cfg -f openocd/main.cfg
 
+main.rs: top.bin
+	cargo build --release