diff --git a/.all-contributorsrc b/.all-contributorsrc
index 4a91bce44..663697c41 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -13,6 +13,15 @@
       "contributions": [
         "infra"
       ]
+    },
+    {
+      "login": "visr",
+      "name": "Martijn Visser",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/4471859?v=4",
+      "profile": "https://github.com/visr",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/README.md b/README.md
index 0dff177b0..b3479a8cb 100644
--- a/README.md
+++ b/README.md
@@ -181,6 +181,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <table>
   <tr>
     <td align="center"><a href="https://www.evetion.nl"><img src="https://avatars0.githubusercontent.com/u/8655030?v=4" width="100px;" alt=""/><br /><sub><b>Maarten Pronk</b></sub></a><br /><a href="#infra-evetion" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
+    <td align="center"><a href="https://github.com/visr"><img src="https://avatars1.githubusercontent.com/u/4471859?v=4" width="100px;" alt=""/><br /><sub><b>Martijn Visser</b></sub></a><br /><a href="https://github.com/JuliaEarth/GeoStats.jl/commits?author=visr" title="Code">💻</a></td>
   </tr>
 </table>