diff --git a/sh/code.sh b/sh/code.sh
index c4cef2d..8f6851f 100644
--- a/sh/code.sh
+++ b/sh/code.sh
@@ -1,6 +1,10 @@
 # code
 # module
 
+# ╭──────╮
+# │ code │
+# ╰──────╯
+
 # show the cached code
 #= rc
 rwx_code() {
@@ -18,3 +22,17 @@ rwx_code_constants() {
 rwx_code_functions() {
 	echo "${_rwx_code_functions}"
 }
+
+# ╭──────┬───────╮
+# │ code │ check │
+# ╰──────┴───────╯
+
+# check source code
+rwx_code_check() {
+	# check format
+	rwx_log
+	rwx_shfmt "${RWX_ROOT_SYSTEM}"
+	# check syntax
+	rwx_log
+	rwx_shellcheck "${RWX_ROOT_SYSTEM}"
+}
diff --git a/sh/self.sh b/sh/self.sh
index b683214..e25add3 100644
--- a/sh/self.sh
+++ b/sh/self.sh
@@ -25,20 +25,6 @@ rwx_doc() {
 			--file "${RWX_AWK}"
 }
 
-# ╭──────┬───────╮
-# │ self │ check │
-# ╰──────┴───────╯
-
-# check source code
-rwx_self_check() {
-	# check format
-	rwx_log
-	rwx_shfmt "${RWX_ROOT_SYSTEM}"
-	# check syntax
-	rwx_log
-	rwx_shellcheck "${RWX_ROOT_SYSTEM}"
-}
-
 # ╭──────┬──────────╮
 # │ self │ commands │
 # ╰──────┴──────────╯