diff --git a/doc/filters.texi b/doc/filters.texi
index bcbe21af8a..f4c1d03e7d 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -3389,7 +3389,7 @@ Specify the hue angle as a number of degrees. It accepts a float
 number or an expression, and defaults to 0.0.
 
 @item H
-Specify the hue angle as a number of degrees. It accepts a float
+Specify the hue angle as a number of radians. It accepts a float
 number or an expression, and defaults to 0.0.
 
 @item s