diff --git a/partials/post-background.hbs b/partials/post-background.hbs
index 15e03b5..b423d26 100644
--- a/partials/post-background.hbs
+++ b/partials/post-background.hbs
@@ -16,7 +16,7 @@ for it, and apply those styles to the <header> tag. Else, we just output a <head
                 <img srcset="{{img_url feature_image size="s"}} 300w"
                     src="{{img_url feature_image size="m"}}" alt="{{title}}" loading="lazy">
                 {{else}}
-                <img srcset="{{img_url feature_image size="s"}} 300w"
+                <img srcset="{{img_url @site.cover_image size="s"}} 300w"
                     src="{{img_url @site.cover_image size="m"}}" alt="{{title}}" loading="lazy">
                 {{/if}}
             </div>
