diff --git a/.hgignore b/.hgignore
index ee97264e54..71050adcb1 100644
--- a/.hgignore
+++ b/.hgignore
@@ -14,6 +14,7 @@ syntax: glob
 obj/
 [Rr]elease*/
 _ReSharper*/
+_NCrunch_*/
 *.ncrunchsolution
 *.ncrunchsolution.user
 *.ncrunchproject