diff --git a/PluginMarket.class.php b/PluginMarket.class.php
index 182a0f7a007988de3932b19cc324da4790557ecc..8075546ef685b90fadcced8ebf355e227bf98e66 100755
--- a/PluginMarket.class.php
+++ b/PluginMarket.class.php
@@ -12,7 +12,8 @@ class PluginMarket extends StudIPPlugin implements SystemPlugin, HomepagePlugin
             '1.9', '1.10', '1.11',
             '2.0', '2.1', '2.2', '2.3', '2.4',
             '2.5',
-            '3.0', '3.1', '3.2', "3.3", "3.4", "3.5"
+            '3.0', '3.1', '3.2', "3.3", "3.4", "3.5",
+            "4.0"
         );
     }
 
diff --git a/controllers/presenting.php b/controllers/presenting.php
index 0f2ba6fd6cb05679744ca072f891342816eaa93f..fe7335409a41d87ced51873323966febf135e94f 100755
--- a/controllers/presenting.php
+++ b/controllers/presenting.php
@@ -181,7 +181,11 @@ class PresentingController extends MarketController
         // Add actions widget
         $sidebar = Sidebar::Get();
         $actions = new ActionsWidget();
-        $actions->addLink(_('Nutzung mitteilen'), $this->url_for('presenting/propose_usage/'.$this->marketplugin->id), 'icons/16/blue/add.svg')->asDialog('size=auto');
+        $actions->addLink(
+            _('Nutzung mitteilen'),
+            $this->url_for('presenting/propose_usage/'.$this->marketplugin->id),
+            Icon::create('add', "clickable")
+        )->asDialog('size=auto');
         $sidebar->addWidget($actions);
     }