diff --git a/.gitignore b/.gitignore
index 982bf1eb299290ddedad276acb061362f796f817..c8a7696621ed6ba783b36556b2960a4806c84e9a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,4 @@ git*.pdf
 /gitrefcard.idx
 /gitrefcard.ilg
 /gitrefcard.ind
+*.xdv