diff --git a/mk/initfs.mk b/mk/initfs.mk
index 6d762b1..dc25325 100644
--- a/mk/initfs.mk
+++ b/mk/initfs.mk
@@ -1,4 +1,5 @@
 build/initfs.tag: initfs.toml
 	cd kernel && xargo clean
+	rm -rf build/initfs
 	cargo run --manifest-path installer/Cargo.toml -- $(INSTALLER_FLAGS) $<
 	touch $@