--- a/src/dash.1
+++ b/src/dash.1
@@ -2163,6 +2163,8 @@
 have at one time
 .It Fl n
 show or set the limit on the number files a process can have open at once
+.It Fl r
+show or set the limit on the real-time scheduling priority of a process
 .El
 .Pp
 If none of these is specified, it is the limit on file size that is shown
--- a/src/miscbltin.c
+++ b/src/miscbltin.c
@@ -392,6 +392,10 @@
 #ifdef RLIMIT_LOCKS
 	{ "locks",			RLIMIT_LOCKS,	   1, 'w' },
 #endif
+#ifdef RLIMIT_RTPRIO
+	{ "rtprio",			RLIMIT_RTPRIO,	   1, 'r' },
+#endif
+
 	{ (char *) 0,			0,		   0,  '\0' }
 };