diff --git a/Makefile b/Makefile
index 6228658..3bd5aea 100644
--- a/Makefile
+++ b/Makefile
@@ -78,8 +78,7 @@ qemu: kern/kernel.elf
 	@$(QEMU) -machine virt -bios none -nographic -m 128M -smp 4 -kernel $<
 
 clean:
-	rm -f *.o *.elf *.d lib/*.o lib/*.d
-	find . -type f -name '*.[od]' -exec rm -f {} +
+	find . -type f -name '*.[od(elf)]' -exec rm -f {} +
 
 format:
 	find . -type f -name '*.[ch]' -exec clang-format -i {} +