diff --git a/BIN/LS.S.txt b/BIN/LS.S.txt
index e22c4683..bef8a918 100644
--- a/BIN/LS.S.txt
+++ b/BIN/LS.S.txt
@@ -63,6 +63,7 @@ CS.START		cld
 				.DA CS.RUN
 				.DA CS.DOEVENT
 				.DA	CS.QUIT
+L.MSG.USAGE     .DA MSG.USAGE
 L.MSG.REG		.DA MSG.REG
 L.MSG.REGEXT	.DA MSG.REGEXT
 L.MSG.DIR		.DA MSG.DIR
@@ -110,6 +111,10 @@ CS.RUN
 				dex
 				bpl .2
 
+                >PUSHW L.MSG.USAGE
+                >PUSHBI 0
+                >SYSCALL PrintF
+
 				lda #E.SYN
 				sec
 				rts
@@ -800,6 +805,12 @@ CS.END
 OptionList		.AS "ACFLRacflr"
 OptionVars		.DA #bAllmostAll,#bColumn,#bFullPath,#bLong,#bRecurse,#bAllmostAll,#bColumn,#bFullPath,#bLong,#bRecurse
 *--------------------------------------
+MSG.USAGE       .AS "Usage : LS [-A] [-C] [-F] [-L] [-R] [filespec]\r\n"
+                .AS "   -A : Show dot files\r\n"
+                .AS "   -C : List in multiple columns\r\n"
+                .AS "   -F : Show full paths\r\n"
+                .AS "   -L : Use long listing format\r\n"
+                .AZ "   -R : Recursively list subdirectories\r\n"
 MSG.REGEXT		.AZ "%s %6s %6s %10u %s %s %s %H %s"
 MSG.REG			.AZ "%19s"
 MSG.DIREXT		.AZ "%s %6s %6s            %s %s  <dir>   %s"