diff --git a/Makefile b/Makefile
index c1b393b..b4cdda6 100644
--- a/Makefile
+++ b/Makefile
@@ -80,7 +80,8 @@ clean:
 	rm -f build/ckb-js-vm
 	rm -f build/ckb-js-vm.debug
 	cd tests/ckb_js_tests && make clean
-	make -C deps/compiler-rt-builtins-riscv clean
+	cd deps/compiler-rt-builtins-riscv && make clean
+	cd deps/musl && rm -rf obj release
 
 STYLE := "{BasedOnStyle: Google, TabWidth: 4, IndentWidth: 4, UseTab: Never, SortIncludes: false, ColumnLimit: 120}"