diff --git a/.gitignore b/.gitignore
index d68afb4..16efbd5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,8 @@
 
 *.pdf
 *.swp
+.\~lock*
+*.ott
 
 # Created by https://www.gitignore.io/api/latex
 # Edit at https://www.gitignore.io/?templates=latex