diff --git a/src/diffenator2/templates/diffbrowsers_proofer.html b/src/diffenator2/templates/diffbrowsers_proofer.html
index 39beb22..484e992 100644
--- a/src/diffenator2/templates/diffbrowsers_proofer.html
+++ b/src/diffenator2/templates/diffbrowsers_proofer.html
@@ -79,8 +79,9 @@ <h3>Glyphset: {{ glyph_set }}</h3>
         {% for section_title, strings in section.items() %}
             <div class="box">
                 <div class="box-title">{{ section_title }}</div>
-                {% for string in strings %}
-                    <div class="box-text {{ font_class.class_name }}" style="font-size: {{ pt_size }}pt">{{ string }}</div>
+                {% for sentence in strings %}
+                    <div class="box-text {{ font_class.class_name }}" style="font-size: {{ pt_size }}pt" lang="{{ sentence['lang'] }}">
+                        {{ sentence["string"] }}</div>
                 {% endfor %}
             </div>
         {% endfor %}
@@ -98,8 +99,10 @@ <h3>Glyphset: {{ glyph_set }}</h3>
             {% for section_title, strings in section.items() %}
                 <div class="box">
                     <div class="box-title">{{ section_title }}</div>
-                    {% for string in strings %}
-                        <div class="box-text {{ font_class.class_name }} box-text" style="font-size: {{ pt_size }}pt">{{ string }}</div>
+                    {% for sentence in strings %}
+                        <div class="box-text {{ font_class.class_name }} box-text" style="font-size: {{ pt_size }}pt" lang="{{ sentence['lang'] }}">
+                            {{ sentence["string"] }}
+                        </div>
                     {% endfor %}
                 </div>
             {% endfor %}