diff --git a/man7/man-pages.7 b/man7/man-pages.7
index b7fbdb7d6..0e7082714 100644
--- a/man7/man-pages.7
+++ b/man7/man-pages.7
@@ -920,6 +920,16 @@ use the following form in the man page source:
 .PP
 This guideline applies also to code examples.
 .PP
+The use of real minus signs serves the following purposes:
+.\" https://lore.kernel.org/linux-man/20210121061158.5ul7226fgbrmodbt@localhost.localdomain/
+.IP * 3
+To provide better renderings on various targets other than
+ASCII terminals,
+notably in PDF and on Unicode/UTF\-8-capable terminals.
+.IP *
+To generate glyphs that when copied from rendered pages will
+produce real minus signs when pasted into a terminal.
+.PP
 To produce unslanted single quotes that render well in ASCII, UTF-8, and PDF,
 use "\e(aq" ("apostrophe quote"); for example
 .PP