diff --git a/sx-open b/sx-open
index bf9cece..538556b 100755
--- a/sx-open
+++ b/sx-open
@@ -5,7 +5,7 @@
 cfg_file="$HOME/.config/sx-open.cfg"
 [[ -f "$cfg_file" ]] && { source "$cfg_file"; }
 
-usage() { echo "usage function not implemented yet."; }
+usage() { echo "${0##*/} <uri/file>"; }
 
 handle_uri() {
 	local target="$1"