diff --git a/Rules b/Rules
index 3bc827f..146f9c0 100644
--- a/Rules
+++ b/Rules
@@ -6,7 +6,8 @@ preprocess do
   themas.each do |thema|
     content = ''
     attributes = {
-        naam: thema
+        identifier: thema,
+        naam: thema.capitalize
     }
     identifier = "/themas/#{thema}"
 
diff --git a/layouts/verenigingen.erb b/layouts/verenigingen.erb
index 0eb1e09..2d76b9d 100644
--- a/layouts/verenigingen.erb
+++ b/layouts/verenigingen.erb
@@ -5,7 +5,7 @@
       <% for thema in themas %>
         <a class="tile clickable tile--medium" href="<%= thema.path %>">
           <div class="tile__image tile__image--svg tile__image--blue">
-            <%= @items["/assets/themas_icon/"+thema[:naam]+".svg"].compiled_content %>
+            <%= @items["/assets/themas_icon/"+thema[:identifier]+".svg"].compiled_content %>
           </div>
           <p class="tile__title tile__title--medium"> <%= thema[:naam] %> </p>
         </a>