diff --git a/hosts/mediawiki/default.nix b/hosts/mediawiki/default.nix
index 7146f54c..0844df8a 100644
--- a/hosts/mediawiki/default.nix
+++ b/hosts/mediawiki/default.nix
@@ -54,7 +54,6 @@ in
 
         $wgGroupPermissions['*']['edit'] = false;
         $wgGroupPermissions['user']['edit'] = true;
-        $wgGroupPermissions['sysop']['interwiki'] = true;
         $wgGroupPermissions['sysop']['userrights'] = true;
 
         define("NS_INTERN", 100);
@@ -114,6 +113,13 @@ in
         $wgUseAjax = true;
         $wgEnableMWSuggest = true;
 
+# we are using the feature of the default extension interwiki for linking to other articles of the same domain
+# https://www.mediawiki.org/wiki/Extension:Interwiki
+# without loading this extension there is no page Spezial:Interwikitablle (aka Special:Interwiki) to manage the table of entries for interwiki links
+        wfLoadExtension( 'Interwiki' );
+# all members of the sysop group should be able to manage entries for interwiki links
+        $wgGroupPermissions['sysop']['interwiki'] = true;
+
         //TODO what about $wgUpgradeKey ?
 
         $wgScribuntoDefaultEngine = 'luastandalone';