diff --git a/templates/pages/p_documentation.html b/templates/pages/p_documentation.html
index 51d03c7..53a0316 100644
--- a/templates/pages/p_documentation.html
+++ b/templates/pages/p_documentation.html
@@ -136,22 +136,27 @@
                 {{ cur_article.text|safe }}
                 <div class="controls_content_part_tree_els">
                     <div class="control_content_part_tree_el left">
-                        <picture class="arrow_control_content_part_tree_el_picture">
-                            <source srcset="{% static "images/arrow_control_part_tree_el.svg" %}">
-                            <img class="arrow_control_content_part_tree_el_img" src="{% static "images/arrow_control_part_tree_el.svg" %}" alt="">
-                        </picture>
-                        <div class="txt_control_content_part_tree_el" data-url="{% url 'docs_art_page' cur_version.url prev_article.url %}" onclick="changeCurArticle(this)">
-                            {% trans "Предыдущий" %}
-                        </div>
+                        {% if prev_article %}
+                            <picture class="arrow_control_content_part_tree_el_picture">
+                                <source srcset="{% static "images/arrow_control_part_tree_el.svg" %}">
+                                <img class="arrow_control_content_part_tree_el_img" src="{% static "images/arrow_control_part_tree_el.svg" %}" alt="">
+                            </picture>
+                        
+                            <div class="txt_control_content_part_tree_el" data-url="{% url 'docs_art_page' cur_version.url prev_article.url %}" onclick="changeCurArticle(this)">
+                                {% trans "Предыдущий" %}
+                            </div>
+                        {% endif %}
                     </div>
                     <div class="control_content_part_tree_el right">
-                        <div class="txt_control_content_part_tree_el" data-url="{% url 'docs_art_page' cur_version.url next_article.url %}" onclick="changeCurArticle(this)">
-                            {% trans "Следующий" %}
-                        </div>
-                        <picture class="arrow_control_content_part_tree_el_picture">
-                            <source srcset="{% static "images/arrow_control_part_tree_el.svg" %}">
-                            <img class="arrow_control_content_part_tree_el_img" src="{% static "images/arrow_control_part_tree_el.svg" %}" alt="">
-                        </picture>
+                        {% if next_article %}
+                            <div class="txt_control_content_part_tree_el" data-url="{% url 'docs_art_page' cur_version.url next_article.url %}" onclick="changeCurArticle(this)">
+                                {% trans "Следующий" %}
+                            </div>
+                            <picture class="arrow_control_content_part_tree_el_picture">
+                                <source srcset="{% static "images/arrow_control_part_tree_el.svg" %}">
+                                <img class="arrow_control_content_part_tree_el_img" src="{% static "images/arrow_control_part_tree_el.svg" %}" alt="">
+                            </picture>
+                        {% endif %}
                     </div>
                 </div>
             </div>