diff --git a/.gitignore b/.gitignore
index 7b2ad7687..e2689c9fd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@ macosx/Transmission.app
 macosx/en.lproj/*~.nib
 po/*.mo
 /release
+third-party/miniupnp/miniupnpcstrings.h