diff --git a/bin/ps/ps.1 b/bin/ps/ps.1
index d823df48c09..0a6a5555ba3 100644
--- a/bin/ps/ps.1
+++ b/bin/ps/ps.1
@@ -80,7 +80,7 @@ and
 .Fl x
 options.
 Except for options
-.Fl A , a , X ,
+.Fl X
 and
 .Fl x ,
 as soon as one of them appears, it inhibits the default process selection, i.e.,
@@ -215,11 +215,6 @@ see
 and
 .Fl x
 .Pc .
-Currently, this option has no effect if any other option selecting processes to
-display is present, except for
-.Fl X
-and
-.Fl x .
 If the
 .Va security.bsd.see_other_uids
 sysctl is set to zero, this option is honored only if the real user ID of the
@@ -965,13 +960,13 @@ which is the current behavior of option
 .Pc .
 .Pp
 However, options
-.Fl G , l , o , p ,
+.Fl A , a , G , l , o , p ,
 and
 .Fl t
 behave as prescribed by
 .St -p1003.1-2024 .
 Options
-.Fl A , a , f , U ,
+.Fl f , U ,
 and
 .Fl w
 currently do not, but may be changed to in the future.
@@ -1021,20 +1016,6 @@ implementation (for other BSDs, illumos or Linux) behaves like this.
 For all these reasons, the behavior is expected to be changed soon to using the
 effective user ID instead.
 .Pp
-The
-.Fl a
-option has no effect if other options affecting the selection of processes are
-used, except for (non-)filters
-.Fl X
-and
-.Fl x.
-Option
-.Fl A
-has the same restriction.
-This idiosyncrasy is both in contradiction with
-.St -p1003.1-2024
-and arguably with common sense, and is expected to be removed soon.
-.Pp
 .Nm ps
 currently does not correctly limit the ouput width, and in most cases does not
 limit it at all when it should.
diff --git a/bin/ps/ps.c b/bin/ps/ps.c
index db339a76598..ebfc3f0bb1e 100644
--- a/bin/ps/ps.c
+++ b/bin/ps/ps.c
@@ -528,7 +528,14 @@ main(int argc, char *argv[])
 	free(keywords_info);
 	keywords_info = NULL;
 
-	if (!all && nselectors == 0) {
+	if (all)
+		/*
+		 * We have to display all processes, regardless of other
+		 * options.
+		 */
+		nselectors = 0;
+	else if (nselectors == 0) {
+		/* Default is to request our processes only. */
 		uidlist.l.ptr = malloc(sizeof(uid_t));
 		if (uidlist.l.ptr == NULL)
 			xo_errx(1, "malloc failed");