diff --git a/source/_includes/post_header.html.twig b/source/_includes/post-header.html.twig
similarity index 100%
rename from source/_includes/post_header.html.twig
rename to source/_includes/post-header.html.twig
diff --git a/source/_layouts/post.html.twig b/source/_layouts/post.html.twig
index f7694a425..c542ea18f 100644
--- a/source/_layouts/post.html.twig
+++ b/source/_layouts/post.html.twig
@@ -2,7 +2,7 @@
 
 {% block content_wrapper %}
     <main class="col-md-9">
-        {% include 'post_header' %}
+        {% include 'post-header' %}
 
         {% block content %}{% endblock content %}
 
diff --git a/source/blog.html b/source/blog.html
index 0aacbeeca..086f49dd1 100644
--- a/source/blog.html
+++ b/source/blog.html
@@ -14,7 +14,7 @@ use:
     <ul class="posts">
     {% for post in page.pagination.items %}
         <li class="post">
-            {% include 'post_header' with { page: post, title_tag: 'h2' } %}
+            {% include 'post-header' with { page: post, title_tag: 'h2' } %}
 
             {% if post.blocks.excerpt %}
                 {{ post.blocks.excerpt|raw }}