diff --git a/kitty/options/definition.py b/kitty/options/definition.py
index 30737f757..94bb565fc 100644
--- a/kitty/options/definition.py
+++ b/kitty/options/definition.py
@@ -1520,8 +1520,8 @@ opt('background_image_linear', 'no',
 opt('second_transparent_bg', 'none', option_type='to_color_or_none', long_text='''
 When the background color matches this color, :opt:`background_opacity` is applied to it
 to render it as semi-transparent, just as for colors matching the background color.
-Useful, in more complex UIs like editors where you could want more than a single background color
-to be rendered as transparent.
+Useful in more complex UIs like editors where you could want more than a single background color
+to be rendered as transparent, for instance, for a cursor highlight line background.
 ''')
 
 opt('dynamic_background_opacity', 'no',