diff --git a/data/copyright.html b/data/copyright.html
index e86284cd6a..8ecb61f7cd 100644
--- a/data/copyright.html
+++ b/data/copyright.html
@@ -229,7 +229,8 @@
     <li><a href="https://www.ordnancesurvey.co.uk/business-government/products/code-point-open">National Statistics data</a><br>
       &copy; Crown copyright and database right 2018; <a href="#ogl3" class="license">Open Government Licence</a></li>
 
-    <li><a href="https://github.com/skarupke/flat_hash_map">Skarupke Hash Tables</a></li>
+    <li><a href="https://github.com/skarupke/flat_hash_map">Skarupke Hash Tables</a><br>
+      &copy; Malte Skarupke 2017; <a href="#boost-license" class="license">Boost License</a></li>
   </ul>
 
   <p lang="en">We also use these wonderful fonts for labels on the map:</p>