diff --git a/services/caddy.json b/services/caddy.json
index 313e93b..1f1fe92 100644
--- a/services/caddy.json
+++ b/services/caddy.json
@@ -14,7 +14,7 @@
         "link": "https://otrs.wiai.de/",
         "name": "OTRS"
       },
-	  {
+      {
         "image": "pictures/wiki.png",
         "button": "btn-primary",
         "link": "https://wiki.wiai.de/",
@@ -56,6 +56,12 @@
         "link": "https://git.wiai.de",
         "name": "Git"
       },
+      {
+        "image": "pictures/hackMd.png",
+	"button": "btn-primary",
+	"link": "https://hackmd.wiai.de",
+	"name": "HackMD"
+      },
       {
         "image": "pictures/etherpad.png",
         "button": "btn-primary",