diff --git a/.hgignore b/.hgignore
index 06a1adbb69..c8a896dbc1 100644
--- a/.hgignore
+++ b/.hgignore
@@ -20,6 +20,7 @@ Thumbs.db
 PBProject/build
 ver.cpp
 lib*_link.a
+Data/UserPrefs
 
 syntax: regexp
 .*\#.*\#$