diff --git a/usr.bin/column/column.c b/usr.bin/column/column.c
index 06fc3f86c463..cf8c7a92f5e0 100644
--- a/usr.bin/column/column.c
+++ b/usr.bin/column/column.c
@@ -300,6 +300,6 @@ usage()
 {
 
 	(void)fprintf(stderr,
-	    "usage: column [-tx] [-c columns] [file ...]\n");
+	    "usage: column [-tx] [-c columns] [-s sep] [file ...]\n");
 	exit(1);
 }