diff --git a/kitty/options/definition.py b/kitty/options/definition.py
index 592d8ccd9..0007ad223 100644
--- a/kitty/options/definition.py
+++ b/kitty/options/definition.py
@@ -337,6 +337,8 @@ will cause the cursor blink to be animated over a second, in the first half of t
 it will go from opaque to transparent and then back again over the next half. You can specify
 different easing functions for the two halves, for example: :code:`-1 linear ease-out`. kitty
 supports all the :link:`CSS easing functions <https://developer.mozilla.org/en-US/docs/Web/CSS/easing-function>`.
+Note that turning on animations uses extra power as it means the screen is redrawn multiple times
+per blink interval. See also, :opt:`cursor_stop_blinking_after`.
 '''
     )