diff --git a/man7/man-pages.7 b/man7/man-pages.7
index 5204d6b6e..58357cd82 100644
--- a/man7/man-pages.7
+++ b/man7/man-pages.7
@@ -528,6 +528,15 @@ The preferred way to write this in the source file is:
 makes it easier to write tools that parse man page source files.)
 .\"
 .SS Formatting conventions (general)
+Paragraphs should be separated by suitable markers (usually either
+.I .PP
+or
+.IR .IP ).
+Do
+.I not
+separate paragraphs using blank lines, as this results in poor rendering
+in some output formats (such as PostScript and PDF).
+.PP
 Filenames (whether pathnames, or references to header files)
 are always in italics (e.g.,
 .IR <stdio.h> ),