diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..fbba961
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+*.o
+*.bin
+*.img
+*.elf
+*.dSYM
+tools/mkfs
+ejudge.sh
diff --git a/Makefile b/Makefile
index 1ae7f1c..4c8b27a 100644
--- a/Makefile
+++ b/Makefile
@@ -82,7 +82,7 @@ mbr.elf: mbr.o
 	$(LD) -m elf_i386 -Ttext=0x7c00 $^ -o $@
 
 clean:
-	rm -f *.elf *.img *.bin *.o */*.o tools/mkfs
+	rm -f *.elf *.img *.bin *.o */*.o tools/mkfs ejudge.sh
 
 tools/%: tools/%.c
 	gcc -Wall -Werror -g $^ -o $@