diff --git a/app/views/layouts/public.html.haml b/app/views/layouts/public.html.haml
index 10926ed..2586187 100644
--- a/app/views/layouts/public.html.haml
+++ b/app/views/layouts/public.html.haml
@@ -9,7 +9,7 @@
 		
 		= csrf_meta_tag 
 
-		= '<link rel="image_src" href="'+@thumbnail_image.to_s+'" />' if @thumbnail_image
+		= raw '<link rel="image_src" href="'+@thumbnail_image.to_s+'" />' if @thumbnail_image
 		
 		<meta name="viewport" content="width=device-width,initial-scale=1">