diff --git a/bin/build-libbitcoind b/bin/build-libbitcoind
index 532412f8..820230f6 100755
--- a/bin/build-libbitcoind
+++ b/bin/build-libbitcoind
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 root_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/.."
 #root_dir="$(readlink -f "$(dirname "$0")")/.."
diff --git a/bin/patch-bitcoin b/bin/patch-bitcoin
index 4deab04f..835834b0 100755
--- a/bin/patch-bitcoin
+++ b/bin/patch-bitcoin
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 root_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/.."
 #root_dir="$(readlink -f "$(dirname "$0")")/.."