diff --git a/.gitignore b/.gitignore
index 920446c0288fe7c6e26bd32299a644a2a26595f4..445dfa66bcafe01e09dacf4c02ed2994b4810bbc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,4 +15,5 @@ lanqiao_template.md
 test.html
 ./src/__pycache__/*.pyc
 leetcode_class.md
-fix_bug.py
\ No newline at end of file
+fix_bug.py
+tools.py
\ No newline at end of file