Fix condition and format of post modification

1 files changed, 2 insertions, 2 deletions

diff --git a/_layouts/post.html b/_layouts/post.html
index 815e1e3..74a37f4 100644
--- a/_layouts/post.html
+++ b/_layouts/post.html
@@ -11,9 +11,9 @@ layout: default
         {%- assign date_format = "%A, %e. %B %Y, %k:%M" -%}
         {{ page.date | date: date_format }}
       </time>
-      {%- if page.last_modified_at.size -%}
+      {%- if page.last_modified_at -%}
       •
-      <time class="dt-updated" datetime="{{ post.last_modified_at | date_to_xmlschema }}" itemprop="dateUpdated">
+      <time class="dt-updated" datetime="{{ page.last_modified_at | date_to_xmlschema }}" itemprop="dateUpdated">
         Updated: {{ page.last_modified_at | date: date_format }}
       </time>
       {%- endif -%}