diff --git a/ui/dev.sh b/ui/dev.sh
index 8b13baf..71ad041 100755
--- a/ui/dev.sh
+++ b/ui/dev.sh
@@ -1,3 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash
 parcel serve assets/index.html -o index--parelified.html --open &
 spago bundle-app --main Main --to assets/app.js --watch