diff --git a/lispref/positions.texi b/lispref/positions.texi
index de83c86489a..9fe43316213 100644
--- a/lispref/positions.texi
+++ b/lispref/positions.texi
@@ -331,7 +331,8 @@ This command does not move point across a field boundary
 (@pxref{Fields}) unless doing so would move beyond there to a
 different line; if @var{count} is @code{nil} or 1, and point starts at
 a field boundary, point does not move.  To ignore field boundaries,
-use the @code{forward-line} function instead.  For instance,
+either bind @code{inhibit-field-text-motion} to @code{t}, or use the
+@code{forward-line} function instead.  For instance,
 @code{(forward-line 0)} does the same thing as
 @code{(beginning-of-line)}, except that it ignores field boundaries.
 
@@ -354,7 +355,8 @@ argument @var{count} not @code{nil} or 1, it moves forward
 This command does not move point across a field boundary
 (@pxref{Fields}) unless doing so would move beyond there to a
 different line; if @var{count} is @code{nil} or 1, and point starts at
-a field boundary, point does not move.
+a field boundary, point does not move.  To ignore field boundaries,
+bind @code{inhibit-field-text-motion} to @code{t}.
 
 If this function reaches the end of the buffer (or of the accessible
 portion, if narrowing is in effect), it positions point there.  No error