diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index 2b37df7b3..6a82a9fa5 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -139,6 +139,7 @@
     <item>@string/caldav_server_owncloud</item>
     <item>@string/caldav_server_sabredav</item>
     <item>@string/caldav_server_synology_calendar</item>
+    <item>@string/caldav_server_xandikos</item>
     <item>@string/caldav_server_other</item>
     <item>@string/caldav_server_unknown</item>
   </string-array>
@@ -154,4 +155,4 @@
     <item>-1</item>
   </integer-array>
 
-</resources>
\ No newline at end of file
+</resources>
diff --git a/app/src/main/res/values/keys.xml b/app/src/main/res/values/keys.xml
index 408179b13..a5e2353f9 100644
--- a/app/src/main/res/values/keys.xml
+++ b/app/src/main/res/values/keys.xml
@@ -22,6 +22,7 @@
   <string name="caldav_server_openxchange">Open-Xchange</string>
   <string name="caldav_server_synology_calendar">Synology Calendar</string>
   <string name="caldav_server_mailbox_org">Mailbox.org</string>
+  <string name="caldav_server_xandikos">Xandikos</string>
 
   <string name="url_davx5">https://tasks.org/davx5</string>
   <string name="url_caldav">https://tasks.org/caldav</string>