diff --git a/.hgignore b/.hgignore
index 773f0747d..7d0ba4c7a 100644
--- a/.hgignore
+++ b/.hgignore
@@ -6,6 +6,7 @@ syntax: glob
 .cproject
 .project
 .settings
+.directory
 
 CMakeFiles
 Makefile