diff --git a/blog/templates/macros.html b/blog/templates/macros.html
index c262b74e..6cd07ce8 100644
--- a/blog/templates/macros.html
+++ b/blog/templates/macros.html
@@ -7,3 +7,12 @@
         </div>
     </article>
 {% endmacro post_link %}
+
+{% macro utterances() %}
+    <script src="https://utteranc.es/client.js"
+        repo="phil-opp/blog_os"
+        issue-term="url"
+        crossorigin="anonymous"
+        async>
+    </script>
+{% endmacro utterances %}
diff --git a/blog/templates/news-page.html b/blog/templates/news-page.html
index cd37ad12..e38a8316 100644
--- a/blog/templates/news-page.html
+++ b/blog/templates/news-page.html
@@ -1,5 +1,7 @@
 {% extends "second-edition/base.html" %}
 
+{% import "macros.html" as macros %}
+
 {% block title %}{{ page.title }} | {{ config.title }}{% endblock title %}
 
 {% block main %}
@@ -15,12 +17,7 @@
     <hr>
     <section>
         <h2 id="comments">Comments</h2>
-        <script src="https://utteranc.es/client.js"
-            repo="phil-opp/blog_os"
-            branch="master"
-            issue-term="pathname"
-            async>
-        </script>
+        {{ macros::utterances() }}
     </section>
 
 {% endblock after_main %}
diff --git a/blog/templates/second-edition/extra.html b/blog/templates/second-edition/extra.html
index dc7d8c7a..59b31660 100644
--- a/blog/templates/second-edition/extra.html
+++ b/blog/templates/second-edition/extra.html
@@ -1,5 +1,7 @@
 {% extends "second-edition/base.html" %}
 
+{% import "macros.html" as macros %}
+
 {% block title %}{{ page.title }} | {{ config.title }}{% endblock title %}
 
 {% block main %}
@@ -14,11 +16,6 @@
     <hr>
     <section>
         <h2>Comments</h2>
-        <script src="https://utteranc.es/client.js"
-            repo="phil-opp/blog_os"
-            branch="master"
-            issue-term="pathname"
-            async>
-        </script>
+        {{ macros::utterances() }}
     </section>
 {% endblock after_main %}
diff --git a/blog/templates/second-edition/page.html b/blog/templates/second-edition/page.html
index 9b552c2c..05074331 100644
--- a/blog/templates/second-edition/page.html
+++ b/blog/templates/second-edition/page.html
@@ -1,5 +1,7 @@
 {% extends "second-edition/base.html" %}
 
+{% import "macros.html" as macros %}
+
 {% block title %}{{ page.title }} | {{ config.title }}{% endblock title %}
 
 {% block main %}
@@ -38,12 +40,7 @@
     <hr>
     <section>
         <h2 id="comments">Comments</h2>
-        <script src="https://utteranc.es/client.js"
-            repo="phil-opp/blog_os"
-            branch="master"
-            issue-term="pathname"
-            async>
-        </script>
+        {{ macros::utterances() }}
     </section>
 
 {% endblock after_main %}