diff --git a/app/controllers/page_contents_controller.rb b/app/controllers/page_contents_controller.rb
index c0aedd7..c14962c 100644
--- a/app/controllers/page_contents_controller.rb
+++ b/app/controllers/page_contents_controller.rb
@@ -1,4 +1,5 @@
 class PageContentsController < OrbitAdminController
+  require 'uri'
   def index
     params = OrbitHelper.params
     if params["wiki"].present?
@@ -20,7 +21,7 @@ class PageContentsController < OrbitAdminController
     img_srcs = doc.css('img').map{ |i| i['src'] }
     metas = [{"property" => "og:title", "content" => name},{"property" => "og:site_name", "content" => Site.first.title},{"property" => "og:url", "content" => request.original_url},{"property" => "og:description", "content" => meta_desc},{"property" => "og:type", "content" => "Article"}]
     if img_srcs.count > 0
-      metas << {"property" => "og:image", "content" => "#{request.base_url}#{img_srcs[0]}"}
+      metas << {"property" => "og:image", "content" => URI.join(request.base_url, img_srcs[0])}
     end
     OrbitHelper.render_meta_tags(metas)