diff --git a/sh/main.sh b/sh/main.sh
index e1fb9de..ef831c0 100755
--- a/sh/main.sh
+++ b/sh/main.sh
@@ -73,7 +73,7 @@ rwx_cache() {
 	text="$(cat "${path}")"
 	# all source code
 	RWX_CODE="${RWX_CODE}\
-#↓ ${name}
+#. ${name}
 ${text}
 "
 }
diff --git a/sh/self.sh b/sh/self.sh
index c214105..c181112 100644
--- a/sh/self.sh
+++ b/sh/self.sh
@@ -8,9 +8,9 @@ rwx_doc() {
 	while IFS= read -r line; do
 		case "${line}" in
 			"#!"*) doc="" ;;
-			"#↓"*)
+			"#."*)
 				doc=""
-				module="$(echo "${line}" | sed "s|#↓ \\(.*\\)|\\1|")"
+				module="$(echo "${line}" | sed "s|#\\. \\(.*\\)|\\1|")"
 				;;
 			*"#"*)
 				[ -n "${doc}" ] && doc="${doc}