diff --git a/man7/environ.7 b/man7/environ.7
index ab71e5a45..8fb80f289 100644
--- a/man7/environ.7
+++ b/man7/environ.7
@@ -141,6 +141,13 @@ The user's preferred utility to display text files.
 Any string acceptable as a command-string operand to the
 .I sh\ \-c
 command shall be valid.
+If
+.B PAGER
+is null or is not set,
+then applications that launch a pager will default to a program such as
+.BR less (1)
+or
+.BR more (1).
 .TP
 .BR EDITOR / VISUAL
 The user's preferred utility to edit text files.