diff --git a/ps/help.c b/ps/help.c
index e283c2cb..b64833d3 100644
--- a/ps/help.c
+++ b/ps/help.c
@@ -139,6 +139,7 @@ void do_help (const char *opt, int rc) {
     fputs(_("  O <format>          as -O, with BSD personality\n"), out);
     fputs(_(" -o, o, --format <format>\n"
             "                      user-defined format\n"), out);
+    fputs(_("  -P                  add psr column\n"), out);
     fputs(_("  s                   signal format\n"), out);
     fputs(_("  u                   user-oriented format\n"), out);
     fputs(_("  v                   virtual memory format\n"), out);
diff --git a/ps/ps.1 b/ps/ps.1
index 3031191a..9ca5a6c0 100644
--- a/ps/ps.1
+++ b/ps/ps.1
@@ -4,7 +4,7 @@
 .\" Quick hack conversion by Albert Cahalan, 1998.
 .\" Licensed under version 2 of the Gnu General Public License.
 .\"
-.TH PS "1" "January 2022" "procps-ng" "User Commands"
+.TH PS "1" "2022-05-11" "procps-ng" "User Commands"
 .\"
 .\" To render this page:
 .\"    groff -t -b -man -X -P-resolution -P100 -Tps ps.1 &
@@ -539,6 +539,9 @@ options when in doubt.  Use the
 environment variable to specify a default as desired; DefSysV and DefBSD are
 macros that may be used to choose the default UNIX or BSD columns.
 .TP
+.B \-P
+Add a column showing \fBpsr\fR.
+.TP
 .B s
 Display signal format.
 .TP