diff --git a/components/CalendarExtra.vue b/components/CalendarExtra.vue
index f81815ca3..8f5a3b4ff 100644
--- a/components/CalendarExtra.vue
+++ b/components/CalendarExtra.vue
@@ -57,12 +57,26 @@
                 </p>
             </div>
         </div>
+        <section v-if="(config.calendar.sources || []).length">
+            <h3>
+                <Icon v="link"/>
+                <T>profile.links</T>
+            </h3>
+            <ul>
+                <li v-for="source in config.calendar.sources">
+                    <a :href="source" target="_blank" rel="noopener">
+                        {{clearUrl(source)}}
+                    </a>
+                </li>
+            </ul>
+        </section>
     </section>
 </template>
 
 <script>
     import ClipboardJS from 'clipboard';
     import {socialLinks} from '../src/contact';
+    import {clearUrl} from "../src/helpers";
 
     export default {
         props: {
@@ -76,6 +90,7 @@
                     socialLinks.calendar.mastodon,
                     socialLinks.calendar.twitter,
                 ],
+                clearUrl,
             }
         },
         mounted() {
diff --git a/locale/pl/config.suml b/locale/pl/config.suml
index 555705b9b..4094de035 100644
--- a/locale/pl/config.suml
+++ b/locale/pl/config.suml
@@ -1853,6 +1853,8 @@ profile:
 calendar:
     enabled: true
     route: 'kalendarz'
+    sources:
+        - 'https://miastamaszerujace.pl/'
 
 census:
     enabled: true