diff --git a/vlchlsdump.sh b/vlchlsdump.sh
index 3a4f313..7d4536c 100755
--- a/vlchlsdump.sh
+++ b/vlchlsdump.sh
@@ -1,4 +1,7 @@
 #!/bin/sh
+if [ "$1" == "" -or "$2" == "" ]; then
+    echo "Syntax: $0 URL OUTPUTFILE"
+fi
 
 VLC=/usr/bin/vlc