diff --git a/lib/appearance.bash b/lib/appearance.bash
index 28a131a..8e4b5ef 100644
--- a/lib/appearance.bash
+++ b/lib/appearance.bash
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # colored grep
 export GREP_OPTIONS='--color=auto'