diff --git a/plinth/modules/help/templates/help_about.html b/plinth/modules/help/templates/help_about.html
index e04c3b8a1..5dc4bcc35 100644
--- a/plinth/modules/help/templates/help_about.html
+++ b/plinth/modules/help/templates/help_about.html
@@ -5,6 +5,7 @@
 
 {% load i18n %}
 {% load static %}
+{% load plinth_extras %}
 
 {% block content %}
 
@@ -18,10 +19,10 @@
                 d-flex align-items-center">
       <div class="me-2">
         {% if new_version %}
-          <span class="fa fa-exclamation-triangle" aria-hidden="true"></span>
+          {% icon 'exclamation-triangle' %}
           <span class="visually-hidden">{% trans "Caution:" %}</span>
         {% else %}
-          <span class="fa fa-check-circle" aria-hidden="true"></span>
+          {% icon 'check-circle' %}
           <span class="visually-hidden">{% trans "Success:" %}</span>
         {% endif %}
       </div>
diff --git a/plinth/modules/help/templates/help_manual.html b/plinth/modules/help/templates/help_manual.html
index df461e170..917df69e9 100644
--- a/plinth/modules/help/templates/help_manual.html
+++ b/plinth/modules/help/templates/help_manual.html
@@ -5,6 +5,7 @@
 
 {% load i18n %}
 {% load static %}
+{% load plinth_extras %}
 
 {% block page_head %}
   <link type="text/css" rel="stylesheet"
@@ -14,7 +15,7 @@
 {% block content %}
   <a href="{% url 'help:download-manual' %}" class="btn btn-default pdf"
      role="button">
-    <span class="fa fa-download fa-fw fa-lg"></span>
+    {% icon 'download' %}
     {% trans 'Download as PDF' %}
   </a>
   {{ content|safe }}