diff --git a/sh/shell/bash.sh b/sh/shell/bash.sh
index 3f3287b..20529c0 100644
--- a/sh/shell/bash.sh
+++ b/sh/shell/bash.sh
@@ -2,8 +2,12 @@
 # │ shell │ bash │
 # ╰───────┴──────╯
 
-[ "${RWX_SHELL}" = "bash" ] ||
-	return
+# based on currently running shell
+case "${RWX_SHELL}" in
+	"bash") ;;
+	# skip illegal syntax to come
+	*) return ;;
+esac
 
 # shellcheck disable=SC3033
 ..() {