diff --git a/.gitignore b/.gitignore
index 6015708..3d34ac4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,6 @@ dev_demo.py
 *.rpt
 *.opt
 *.opt.json
+
+# todo
+TODO.md
\ No newline at end of file