diff --git a/_layouts/category_index.html b/_layouts/category_index.html
index 825d291..2bfc471 100644
--- a/_layouts/category_index.html
+++ b/_layouts/category_index.html
@@ -19,7 +19,7 @@ layout: default
   </a>
   <div class="media-body">
     <h2 class="media-heading"><a href="{{ post.url }}">{{ post.title }}</a></h2>
-      <p class="meta">Gepostet am {{ post.date | localize: "%-d. %B %Y" }} in: {% for category in post.categories %}<a class="cat-link" href="/categories/{{ category }}">{{ category }}</a> {% endfor %}</p>
+      <p class="meta">Gepostet am {{ post.date | localize: "%-d. %B %Y" }} in: {% for category in post.categories %}<a class="cat-link" href="/categories/{{ category | downcase }}">{{ category }}</a> {% endfor %}</p>
   </div>
 </div>
 <!-- post ende -->
diff --git a/_layouts/recipe.html b/_layouts/recipe.html
index e72b027..af8b98f 100644
--- a/_layouts/recipe.html
+++ b/_layouts/recipe.html
@@ -11,7 +11,7 @@ layout: default
 {% endif %}
 
 <h2>{{ page.title }}</h2>
-<p class="meta">Gepostet am {{ page.date | localize: "%-d. %B %Y" }} in: {% for category in page.categories %}<a class="cat-link" href="/categories/{{ category }}">{{ category }}</a> {% endfor %}
+<p class="meta">Gepostet am {{ page.date | localize: "%-d. %B %Y" }} in: {% for category in page.categories %}<a class="cat-link" href="/categories/{{category | downcase}}/">{{ category }}</a> {% endfor %}
 {% if page.source_name != null and page.source_name != '' and page.source != null and page.source != '' %}
 ; Quelle: <a href="{{ page.source | escape_once }}">{{ page.source_name | escape_once }}</a>
 {% elsif page.source_name != null and page.source_name != '' %}