diff --git a/coreutils/who.c b/coreutils/who.c
index 597a4d581..f955ce6d3 100644
--- a/coreutils/who.c
+++ b/coreutils/who.c
@@ -48,7 +48,7 @@
 //usage:#define who_full_usage "\n\n"
 //usage:       "Show who is logged on\n"
 //usage:     "\n	-a	Show all"
-//usage:     "\n	-a	Print column headers"
+//usage:     "\n	-H	Print column headers"
 
 #include "libbb.h"