diff --git a/procps/renice.c b/procps/renice.c
index 77f400a1d..2b690e0ed 100644
--- a/procps/renice.c
+++ b/procps/renice.c
@@ -20,13 +20,14 @@
  */
 
 //usage:#define renice_trivial_usage
-//usage:       "{{-n INCREMENT} | PRIORITY} [[-p | -g | -u] ID...]"
+//usage:       "[-n] PRIORITY [[-p | -g | -u] ID...]..."
 //usage:#define renice_full_usage "\n\n"
-//usage:       "Change scheduling priority for a running process\n"
-//usage:     "\n	-n	Adjust current nice value (smaller is faster)"
-//usage:     "\n	-p	Process id(s) (default)"
-//usage:     "\n	-g	Process group id(s)"
-//usage:     "\n	-u	Process user name(s) and/or id(s)"
+//usage:       "Change scheduling priority of a running process\n"
+//usage:     "\n	-n	Add PRIORITY to current nice value"
+//usage:     "\n		Without -n, nice value is set to PRIORITY"
+//usage:     "\n	-p	Process ids (default)"
+//usage:     "\n	-g	Process group ids"
+//usage:     "\n	-u	Process user names"
 
 #include "libbb.h"
 #include <sys/resource.h>