diff --git a/bin/ps/ps.1 b/bin/ps/ps.1
index 257592967589..917b878a08e9 100644
--- a/bin/ps/ps.1
+++ b/bin/ps/ps.1
@@ -29,7 +29,7 @@
 .\"     @(#)ps.1	8.3 (Berkeley) 4/18/94
 .\" $FreeBSD$
 .\"
-.Dd August 18, 2006
+.Dd August 21, 2006
 .Dt PS 1
 .Os
 .Sh NAME
@@ -181,7 +181,8 @@ Display information associated with the space or comma separated
 list of keywords specified.
 The last keyword in the list may be appended with an equals
 .Pq Ql =
-sign and a string spanning the rest of the argument.
+sign and a string that spans the rest of the argument and can contain
+space and comma characters.
 This causes the printed header to use the specified string instead of
 the standard header.
 Multiple keywords may also be given in the form of more than one