diff --git a/Installer/setup.sh b/Installer/setup.sh
index 8718addda8..4beaef3087 100755
--- a/Installer/setup.sh
+++ b/Installer/setup.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 set -eu
 
 if [ "$(id -u)" -ne 0 ]; then