diff --git a/lib/ansible/playbook/__init__.py b/lib/ansible/playbook/__init__.py
index b216392ae0..456c7f546a 100644
--- a/lib/ansible/playbook/__init__.py
+++ b/lib/ansible/playbook/__init__.py
@@ -133,7 +133,7 @@ class PlayBook(object):
             self.inventory    = inventory
 
         if self.module_path is not None:
-           utils.plugins.module_finder.add_directory(self.module_path)
+            utils.plugins.module_finder.add_directory(self.module_path)
 
         self.basedir     = os.path.dirname(playbook) or '.'
         utils.plugins.push_basedir(self.basedir)