diff --git a/.gitignore b/.gitignore
index c50d298fbf..3794904086 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,6 +55,7 @@ tags
 /libs/gtkmm2ext/po/*.mo
 /libs/gtkmm2ext/libgtkmm2ext.pot
 /gtk2_ardour/appdata/po/*.mo
+/gtk2_ardour/ardour.appdata.xml.in
 
 # /gtk2_ardour/
 /gtk2_ardour/ardour.sh