diff --git a/sh/main.sh b/sh/main.sh
index 7b3fe28..3ee4c6f 100644
--- a/sh/main.sh
+++ b/sh/main.sh
@@ -1,10 +1,11 @@
+SH_MAIN_NAME="main.sh"
 SH_NAME="sh"
 SH_SHELL="$(cat /proc/${$}/comm)"
 
 SH_ROOT="/etc/${SH_NAME}"
 SH_USER="${HOME}/${SH_NAME}"
 
-SH_MAIN="${SH_ROOT}/main.sh"
+SH_MAIN="${SH_ROOT}/${SH_MAIN_NAME}"
 
 [ -n "${ENV}" ] || export ENV="${SH_MAIN}"
 
@@ -62,7 +63,7 @@ main_source_directory() {
 	local path="${1}"
 	if [ -d "${path}" ]; then
 		local cmd count ifs module modules
-		modules="$(sh_source_find "${path}" "main.sh")"
+		modules="$(sh_source_find "${path}" "${SH_MAIN_NAME}")"
 		ifs="${IFS}"
 		IFS="
 "