diff --git a/.gitignore b/.gitignore
index bf1f20ef9..8c5afaf34 100644
--- a/.gitignore
+++ b/.gitignore
@@ -216,6 +216,7 @@
 /test/tree
 /test/tree.cxx
 /test/tree.h
+/test/twowin
 /test/unittests
 /test/utf8
 /test/valuators