diff --git a/data/locale/en-US.ini b/data/locale/en-US.ini
index 31eab948..7cbca8d4 100644
--- a/data/locale/en-US.ini
+++ b/data/locale/en-US.ini
@@ -96,6 +96,7 @@ Source.Mirror.Source.Description="Which Source should be mirrored?"
 Source.Mirror.Source.Size="Source Size"
 Source.Mirror.Source.Size.Description="The size of the source being mirrored. (Automatically updated)"
 Source.Mirror.Source.Audio="Enable Audio"
+Source.Mirror.Source.Audio.Description="Enables audio mirroring from this source."
 Source.Mirror.Scaling="Rescale Source"
 Source.Mirror.Scaling.Description="Should the source be rescaled?"
 Source.Mirror.Scaling.Method="Filter"