diff --git a/home/.bash_aliases b/home/.bash_aliases
index ec20f32..495feb8 100644
--- a/home/.bash_aliases
+++ b/home/.bash_aliases
@@ -1,3 +1,4 @@
+#!/bin/sh -e
 alias pyserver='python -m SimpleHTTPServer 8000'
 alias debug='tail -f --follow=name --retry `git root`/app/tmp/logs/debug.log'
 alias error='tail -f --follow=name --retry `git root`/app/tmp/logs/error.log'
diff --git a/home/.bash_completion b/home/.bash_completion
index 91f90dc..51e5ad4 100644
--- a/home/.bash_completion
+++ b/home/.bash_completion
@@ -1,3 +1,4 @@
+#!/bin/bash
 # disable bash completion of tilde when `set expand-tilde Off`
 # see https://bugs.launchpad.net/ubuntu/+source/bash-completion/+bug/622403
 # Expand variable starting with tilde (~)
diff --git a/home/.bash_logout b/home/.bash_logout
index de4f5f7..dc482a5 100644
--- a/home/.bash_logout
+++ b/home/.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/home/.bash_profile b/home/.bash_profile
index 974b969..0587756 100644
--- a/home/.bash_profile
+++ b/home/.bash_profile
@@ -1,3 +1,4 @@
+#!/bin/bash
 if [ -f ~/.profile ]; then
     . ~/.profile
 fi
diff --git a/home/.bashrc b/home/.bashrc
index 7f0af3b..f133718 100644
--- a/home/.bashrc
+++ b/home/.bashrc
@@ -1,3 +1,4 @@
+#!/bin/bash
 # ~/.bashrc: executed by bash(1) for non-login shells.
 # see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
 # for examples