diff --git a/TeX.gitignore b/TeX.gitignore
index 1b3dec1c..e94e6cff 100644
--- a/TeX.gitignore
+++ b/TeX.gitignore
@@ -76,6 +76,7 @@ acs-*.bib
 *.glg
 *.glo
 *.gls
+*.glsdefs
 
 # gnuplottex
 *-gnuplottex-*