diff --git a/ports/build.sh b/ports/build.sh
index 2503447409..0bbe1155ad 100755
--- a/ports/build.sh
+++ b/ports/build.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 CURRENT_DIR=$(dirname $(realpath $0))
 pushd "$CURRENT_DIR" >/dev/null