diff --git a/TeX.gitignore b/TeX.gitignore
index e94915eb611201ef4288cfe449b5898e974922a3..f2cbb7aaa13181954074870b03fe81bfd0e9f05e 100644
--- a/TeX.gitignore
+++ b/TeX.gitignore
@@ -52,6 +52,7 @@ acs-*.bib
 
 # beamer
 *.nav
+*.pre
 *.snm
 *.vrb