diff --git a/mk/initfs.mk b/mk/initfs.mk
index df57df4..c6b9500 100644
--- a/mk/initfs.mk
+++ b/mk/initfs.mk
@@ -1,13 +1,15 @@
-$(BUILD)/initfs.rs: \
-		initfs/bin/init \
-		initfs/bin/ahcid \
-		initfs/bin/bgad \
-		initfs/bin/nvmed \
-		initfs/bin/pcid \
-		initfs/bin/ps2d \
-		initfs/bin/redoxfs \
-		initfs/bin/vesad \
-		initfs/etc/**
+$(KBUILD)/initfs.tag: initfs/bin/init \
+	initfs/bin/ahcid \
+	initfs/bin/bgad \
+	initfs/bin/nvmed \
+	initfs/bin/pcid \
+	initfs/bin/ps2d \
+	initfs/bin/redoxfs \
+	initfs/bin/vboxd \
+	initfs/bin/vesad \
+	initfs/etc/**
+		$(KCARGO) clean --manifest-path kernel/Cargo.toml
+		touch $@
 
 initfs/bin/%: programs/%/Cargo.toml programs/%/src/** $(BUILD)/libstd.rlib
 	mkdir -p initfs/bin
diff --git a/mk/kernel.mk b/mk/kernel.mk
index 9760d0d..b4370b2 100644
--- a/mk/kernel.mk
+++ b/mk/kernel.mk
@@ -3,10 +3,10 @@ $(KBUILD)/libcollections.rlib: rust/src/libcollections/Cargo.toml rust/src/libco
 	$(KCARGO) rustc --manifest-path $< $(KCARGOFLAGS) -o $@
 	cp rust/src/target/$(KTARGET)/release/deps/*.rlib $(KBUILD)
 
-$(KBUILD)/libkernel.a: kernel/Cargo.toml kernel/arch/** kernel/src/** $(KBUILD)/libcollections.rlib $(BUILD)/initfs.rs
+$(KBUILD)/libkernel.a: kernel/Cargo.toml kernel/arch/** kernel/src/** $(KBUILD)/libcollections.rlib $(KBUILD)/initfs.tag
 	$(KCARGO) rustc --manifest-path $< --lib $(KCARGOFLAGS) -o $@
 
-$(KBUILD)/libkernel_live.a: kernel/Cargo.toml kernel/arch/** kernel/src/** $(KBUILD)/libcollections.rlib $(BUILD)/initfs.rs build/filesystem.bin
+$(KBUILD)/libkernel_live.a: kernel/Cargo.toml kernel/arch/** kernel/src/** $(KBUILD)/libcollections.rlib $(KBUILD)/initfs.tag build/filesystem.bin
 	$(KCARGO) rustc --manifest-path $< --lib --features live $(KCARGOFLAGS) -o $@
 
 $(KBUILD)/kernel: $(KBUILD)/libkernel.a