diff --git a/sh/lint/shellcheck.sh b/sh/lint/shellcheck.sh
index ac8c700..0cbe758 100644
--- a/sh/lint/shellcheck.sh
+++ b/sh/lint/shellcheck.sh
@@ -3,12 +3,10 @@ rwx_shellcheck() {
 	local file module modules path
 	file="$(mktemp)"
 	modules="$(rwx_find_shell "${root}")"
-	rwx_ifs_set
-	for module in ${modules}; do
+	printf "%s\n" "${modules}" | while IFS= read -r module; do
 		path="${root}/${module}"
 		echo ". \"${path}\"" >>"${file}"
 	done
-	rwx_ifs_unset
 	rwx_shellcheck_file "${file}"
 	rwx_remove "${file}"
 }
diff --git a/sh/main.sh b/sh/main.sh
index 75036ef..48e7f08 100755
--- a/sh/main.sh
+++ b/sh/main.sh
@@ -132,23 +132,6 @@ rwx_shell_interactive() {
 	esac
 }
 
-# ╭──────┬─────╮
-# │ main │ ifs │
-# ╰──────┴─────╯
-
-# set internal field separator to line feed
-rwx_ifs_set() {
-	_RWX_IFS="${IFS}"
-	IFS="
-"
-}
-
-# unset internal field separator
-rwx_ifs_unset() {
-	IFS="${_RWX_IFS}"
-	unset RWX_IFS
-}
-
 # ╭──────┬──────╮
 # │ main │ find │
 # ╰──────┴──────╯
diff --git a/sh/self.sh b/sh/self.sh
index a7ebca2..dfbe203 100644
--- a/sh/self.sh
+++ b/sh/self.sh
@@ -181,13 +181,14 @@ rwx_self_write() {
 		local file text
 		text="#! /usr/bin/env sh
 "
-		rwx_ifs_set
-		for file in $(rwx_self_subset "${@}"); do
+		local files="$(rwx_self_subset "${@}")"
+		while IFS= read -r file; do
 			text="${text}
 $(cat "${RWX_ROOT_SYSTEM}/${file}")
 "
-		done
-		rwx_ifs_unset
+		done <<EOF
+${files}
+EOF
 		rwx_file_write "${target}" "${text}"
 		rwx_shfmt "${target}"
 		rwx_shellcheck_file "${target}"