diff --git a/dev/install_core_services.sh b/dev/install_core_services.sh
index 1ab542a..e866ddb 100755
--- a/dev/install_core_services.sh
+++ b/dev/install_core_services.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 ROOT=$(pwd)
 ROOT=${ROOT%/pcloud*}/pcloud