diff --git a/defaults/main.yml b/defaults/main.yml
index 0266773..6025f4c 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,11 +1,11 @@
 ---
 dockerengine_package: docker
 
-# @var dockerengine_packages_extra:description >
+# @var dockerengine_packages_extra:description: >
 # The role requires epel repository and pip to work .You can use 
 # `dockerengine_packages_extra` to install these dependencys.
 # @end
-# @var dockerengine_packages_extra:example $ ["epel-release", "python2-pip"]
+# @var dockerengine_packages_extra:example: $ ["epel-release", "python2-pip"]
 dockerengine_packages_extra: []
 
 dockerengine_docker_group_enabled: False