diff --git a/data/locale/en-US.ini b/data/locale/en-US.ini
index e82faea..60a59df 100644
--- a/data/locale/en-US.ini
+++ b/data/locale/en-US.ini
@@ -39,6 +39,7 @@ RateControl.Quality.Target="Target Quality"
 RateControl.Quality.Minimum="Minimum Quality"
 RateControl.Quality.Maximum="Maximum Quality"
 RateControl.BufferSize="Buffer Size"
+RateControl.BufferSize.Description="The size of the buffer to use when determining the remaining available bitrate.\nIdeally should be equal to your bitrate times the key frame interval in seconds."
 
 # Key Frames
 KeyFrames="Key Frames"