diff --git a/hooks/install b/hooks/install
index 74cd708..3ebfcd7 100755
--- a/hooks/install
+++ b/hooks/install
@@ -1,8 +1,8 @@
-#!/bin/bash
+#!/bin/bash -e
 # Wrapper to deal with newer Ubuntu versions that don't have py2 installed
 # by default.
 
-declare -a DEPS=('apt' 'netaddr' 'netifaces' 'pip' 'yaml' 'dnspython', 'crypto')
+declare -a DEPS=('apt' 'netaddr' 'netifaces' 'pip' 'yaml' 'dnspython' 'crypto')
 
 check_and_install() {
     pkg="${1}-${2}"