diff --git a/Doc/.cvsignore b/Doc/.cvsignore
index 8de8fdde3cb..d749f429849 100755
--- a/Doc/.cvsignore
+++ b/Doc/.cvsignore
@@ -7,3 +7,4 @@ lib.texi
 *.toc
 *.ps
 *.idx
+*.ilg