diff --git a/TeX.gitignore b/TeX.gitignore
index cdc72116dc27c4df10e578fe4dca4ae52b0bce89..0b49c51d404b0ee4ede1b3b9ef774afc9f13bafc 100644
--- a/TeX.gitignore
+++ b/TeX.gitignore
@@ -76,6 +76,7 @@ acs-*.bib
 *.glg
 *.glo
 *.gls
+*.glsdefs
 
 # gnuplottex
 *-gnuplottex-*