1 files changed, 2 insertions, 1 deletions

diff --git a/doc/lispref/windows.texi b/doc/lispref/windows.texi
index ae6837b444f..3eaa15a6036 100644
--- a/doc/lispref/windows.texi
+++ b/doc/lispref/windows.texi
@@ -4156,7 +4156,8 @@ window.  If @var{count} is @code{nil} and @var{redisplay} is
 non-@code{nil}, this function may redraw the frame, according to the
 value of @code{recenter-redisplay}.  Thus, omitting the second
 argument can be used to countermand the effect of
-@code{recenter-redisplay} being non-@code{nil}.
+@code{recenter-redisplay} being non-@code{nil}.  Interactive calls
+pass non-‘nil’ for @var{redisplay}.
 
 When @code{recenter} is called interactively, @var{count} is the raw
 prefix argument.  Thus, typing @kbd{C-u} as the prefix sets the