diff --git a/.hgignore b/.hgignore
index b68cccf91..45ecebc31 100644
--- a/.hgignore
+++ b/.hgignore
@@ -17,3 +17,5 @@
 ~$
 ^utils/.*3\.py$
 ^distribute-
+^tests/root/_build/*
+^tests/root/generated/*