diff --git a/opentech/public/home/templates/home/home_page.html b/opentech/public/home/templates/home/home_page.html
index 71b487cd38b23624e2657e94b9d44a69908186fe..56ad6b704dd62fceea2ec98e1476ad69d44209db 100644
--- a/opentech/public/home/templates/home/home_page.html
+++ b/opentech/public/home/templates/home/home_page.html
@@ -26,7 +26,7 @@
             </div>
 
             <section class="header__menus header__menus--desktop">
-                {% cache 3600 navigation__primary %}
+                {% cache 3600 navigation__primary request.site %}
                     {% primarynav %}
                 {% endcache %}
 
@@ -50,7 +50,7 @@
                         </button>
                     </div>
                 </div>
-                {% cache 3600 navigation__primary %}
+                {% cache 3600 navigation__primary request.site %}
                     {% primarynav %}
                 {% endcache %}
             </section>
diff --git a/opentech/templates/base.html b/opentech/templates/base.html
index 583fc0cec95abaa36a4417f8ce4e217361f37b36..965c548fb6e5937c482168cb2db661b74f42dea9 100644
--- a/opentech/templates/base.html
+++ b/opentech/templates/base.html
@@ -92,7 +92,7 @@
                     </div>
 
                     <section class="header__menus header__menus--desktop">
-                        {% cache 3600 navigation__primary %}
+                        {% cache 3600 navigation__primary request.site %}
                             {% primarynav %}
                         {% endcache %}
 
@@ -116,7 +116,7 @@
                                 </button>
                             </div>
                         </div>
-                        {% cache 3600 navigation__primary %}
+                        {% cache 3600 navigation__primary request.site %}
                             {% primarynav %}
                         {% endcache %}
                     </section>