diff --git a/selinux/runcon.c b/selinux/runcon.c
index 54349b2..f0b2126 100644
--- a/selinux/runcon.c
+++ b/selinux/runcon.c
@@ -28,6 +28,28 @@
  *
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
+
+//usage:#define runcon_trivial_usage
+//usage:       "[-c] [-u USER] [-r ROLE] [-t TYPE] [-l RANGE] PROG ARGS\n"
+//usage:       "runcon CONTEXT PROG ARGS"
+//usage:#define runcon_full_usage "\n\n"
+//usage:       "Run PROG in a different security context\n"
+//usage:     "\n	CONTEXT		Complete security context\n"
+//usage:	IF_FEATURE_RUNCON_LONG_OPTIONS(
+//usage:     "\n	-c,--compute	Compute process transition context before modifying"
+//usage:     "\n	-t,--type=TYPE	Type (for same role as parent)"
+//usage:     "\n	-u,--user=USER	User identity"
+//usage:     "\n	-r,--role=ROLE	Role"
+//usage:     "\n	-l,--range=RNG	Levelrange"
+//usage:	)
+//usage:	IF_NOT_FEATURE_RUNCON_LONG_OPTIONS(
+//usage:     "\n	-c	Compute process transition context before modifying"
+//usage:     "\n	-t TYPE	Type (for same role as parent)"
+//usage:     "\n	-u USER	User identity"
+//usage:     "\n	-r ROLE	Role"
+//usage:     "\n	-l RNG	Levelrange"
+//usage:	)
+
 #include <getopt.h>
 #include <selinux/context.h>
 #include <selinux/flask.h>