diff --git a/Makefile b/Makefile
index 94bc572..fa6b95c 100644
--- a/Makefile
+++ b/Makefile
@@ -16,16 +16,13 @@ compile:
 bsp:
 	mill -i mill.bsp.BSP/install
 
-clean:
-	git clean -fd
-
-cleanAll:
-	git clean -fdx
-
 reformat:
 	mill -i __.reformat
 
 checkformat:
 	mill -i __.checkFormat
 
+clean:
+	-rm -rf $(BUILD_DIR)
+
 .PHONY: test verilog help compile bsp reformat checkformat clean