diff --git a/.gitignore b/.gitignore
index c4870a6ba..89f4c3b35 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,6 +23,7 @@ updates_key.pem
 *.egg-info
 *.srt
 *.ttml
+*.tt
 *.sbv
 *.vtt
 *.flv