diff --git a/.gitignore b/.gitignore
index 8fcb601..72bfeb3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,5 @@ node_modules
 .hgignore
 .hgsubstate
 .hg
+.hgsub
 test/npm-debug.log
\ No newline at end of file