diff --git a/files/nova_kernel_permissions.sh b/files/nova_kernel_permissions
similarity index 86%
rename from files/nova_kernel_permissions.sh
rename to files/nova_kernel_permissions
index 00808715..85bb3cf4 100644
--- a/files/nova_kernel_permissions.sh
+++ b/files/nova_kernel_permissions
@@ -1,4 +1,4 @@
-#/bin/sh
+#!/bin/sh
 
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,4 +17,4 @@ version="$1"
 if [ -z "$version" ]; then
   exit 0
 fi
-exec dpkg-statoverride --update --add root nova 0640 "/boot/vmlinuz-${version}"
+exec dpkg-statoverride --force --update --add root nova 0640 "/boot/vmlinuz-${version}"
diff --git a/tasks/drivers/kvm/nova_kernel_permissions.yml b/tasks/drivers/kvm/nova_kernel_permissions.yml
index 2cf5d9fe..755fa956 100644
--- a/tasks/drivers/kvm/nova_kernel_permissions.yml
+++ b/tasks/drivers/kvm/nova_kernel_permissions.yml
@@ -34,6 +34,6 @@
 
 - name: Script installed to make future kernels readable to nova group/user
   copy:
-    src: 'nova_kernel_permissions.sh'
-    dest: '/etc/kernel/postinst.d/nova_kernel_permissions.sh'
+    src: 'nova_kernel_permissions'
+    dest: '/etc/kernel/postinst.d/nova_kernel_permissions'
     mode: '0755'