2 files changed, 4 insertions, 4 deletions

diff --git a/tpl/default/includes.html b/tpl/default/includes.html
index 6c30d1bf..428b8ee2 100644
--- a/tpl/default/includes.html
+++ b/tpl/default/includes.html
@@ -22,12 +22,12 @@
   <meta property="og:url" content="{$index_url}?{$link.shorturl}" />
   {$ogDescription=isset($link.description_src) ? $link.description_src : $link.description}
   <meta property="og:description" content="{function="substr(strip_tags($ogDescription), 0, 300)"}" />
-  {if="$link.thumbnail"}
+  {if="!empty($link.thumbnail)"}
     <meta property="og:image" content="{$index_url}{$link.thumbnail}" />
   {/if}
   {if="!$hide_timestamps || $is_logged_in"}
     <meta property="article:published_time" content="{$link.created->format(DateTime::ATOM)}" />
-    {if="$link.updated"}
+    {if="!empty($link.updated)"}
       <meta property="article:modified_time" content="{$link.updated->format(DateTime::ATOM)}" />
     {/if}
   {/if}
diff --git a/tpl/vintage/includes.html b/tpl/vintage/includes.html
index 2efb6b10..1c4ff79c 100644
--- a/tpl/vintage/includes.html
+++ b/tpl/vintage/includes.html
@@ -19,12 +19,12 @@
   <meta property="og:url" content="{$index_url}?{$link.shorturl}" />
   {$ogDescription=isset($link.description_src) ? $link.description_src : $link.description}
   <meta property="og:description" content="{function="mb_substr(strip_tags($ogDescription), 0, 300)"}" />
-  {if="$link.thumbnail"}
+  {if="!empty($link.thumbnail)"}
     <meta property="og:image" content="{$index_url}{$link.thumbnail}" />
   {/if}
   {if="!$hide_timestamps || $is_logged_in"}
     <meta property="article:published_time" content="{$link.created->format(DateTime::ATOM)}" />
-    {if="$link.updated"}
+    {if="!empty($link.updated)"}
       <meta property="article:modified_time" content="{$link.updated->format(DateTime::ATOM)}" />
     {/if}
   {/if}