diff --git a/app/components/post_preview_component/post_preview_component.html.erb b/app/components/post_preview_component/post_preview_component.html.erb
index a0ea881b2..558526a73 100644
--- a/app/components/post_preview_component/post_preview_component.html.erb
+++ b/app/components/post_preview_component/post_preview_component.html.erb
@@ -40,7 +40,7 @@
       <% end %>
     </p>
     <p class="desc">
-      <%= link_to number_to_human_size(size), post.file_url %>
+      <%= link_to number_to_human_size(file_size), post.file_url %>
       (<%= post.image_width %>x<%= post.image_height %>)
     </p>
     <p class="desc">