diff --git a/system/.bash_logout b/system/.bash_logout
index de4f5f7..dc482a5 100644
--- a/system/.bash_logout
+++ b/system/.bash_logout
@@ -1,3 +1,4 @@
+#!/bin/bash
 # ~/.bash_logout: executed by bash(1) when login shell exits.
 
 # when leaving the console clear the screen to increase privacy
diff --git a/system/.xinitrc b/system/.xinitrc
index cc008f7..a96b2cd 100644
--- a/system/.xinitrc
+++ b/system/.xinitrc
@@ -1,3 +1,4 @@
+#!/bin/bash
 # Disable screen saver
 xset s off
 xset -dpms
diff --git a/system/.xprofile b/system/.xprofile
index a3f4d47..57c555b 100644
--- a/system/.xprofile
+++ b/system/.xprofile
@@ -1,3 +1,4 @@
+#!/bin/bash
 # Disable screen saver
 xset s off
 xset -dpms