diff --git a/common/tools.py b/common/tools.py
index 4a89c47..b7988cb 100644
--- a/common/tools.py
+++ b/common/tools.py
@@ -50,10 +50,13 @@ def sed_i(file_path, pattern, subst):
 	from tempfile import mkstemp
 	from shutil import move
 	from os import close
+	import os
 	temp_fd, temp_path = mkstemp()
+	mode = os.stat(file_path).st_mode
 	with open(temp_path, 'w') as new_file:
 		with open(file_path) as old_file:
 			for line in old_file:
 				new_file.write(line.replace(pattern, subst))
 	close(temp_fd)
+	os.chmod(temp_path, mode)
 	move(temp_path, file_path)
diff --git a/plugins/admin_user/tasks.py b/plugins/admin_user/tasks.py
index 2183b93..387894f 100644
--- a/plugins/admin_user/tasks.py
+++ b/plugins/admin_user/tasks.py
@@ -52,11 +52,6 @@ class AdminUserCredentials(Task):
 		getcreds_path = os.path.join(info.root, 'etc/init.d/ec2-get-credentials')
 		username = info.manifest.plugins['admin_user']['username']
 		sed_i(getcreds_path, 'username=\'root\'', 'username=\'{username}\''.format(username=username))
-		import stat
-		rwxr_xr_x = (stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR |
-                             stat.S_IRGRP                | stat.S_IXGRP |
-                             stat.S_IROTH                | stat.S_IXOTH)
-		os.chmod(getcreds_path, rwxr_xr_x)
 
 
 class DisableRootLogin(Task):