diff --git a/lib/AppInfo/Application20.php b/lib/AppInfo/Application20.php
index ed05a4797..19e5475ed 100644
--- a/lib/AppInfo/Application20.php
+++ b/lib/AppInfo/Application20.php
@@ -36,6 +36,7 @@ use OCA\Deck\Db\AclMapper;
 use OCA\Deck\Db\AssignedUsersMapper;
 use OCA\Deck\Db\BoardMapper;
 use OCA\Deck\Db\CardMapper;
+use OCA\Deck\Listeners\BeforeTemplateRenderedListener;
 use OCA\Deck\Middleware\DefaultBoardMiddleware;
 use OCA\Deck\Middleware\ExceptionMiddleware;
 use OCA\Deck\Notification\Notifier;
@@ -46,6 +47,7 @@ use OCP\AppFramework\App;
 use OCP\AppFramework\Bootstrap\IBootContext;
 use OCP\AppFramework\Bootstrap\IBootstrap;
 use OCP\AppFramework\Bootstrap\IRegistrationContext;
+use OCP\AppFramework\Http\Events\BeforeTemplateRenderedEvent;
 use OCP\Collaboration\Resources\IProviderManager;
 use OCP\Comments\CommentsEntityEvent;
 use OCP\Comments\ICommentsManager;
@@ -84,8 +86,6 @@ class Application20 extends App implements IBootstrap {
 	}
 
 	public function boot(IBootContext $context): void {
-		Util::addStyle('deck', 'deck');
-
 		$context->injectFn(Closure::fromCallable([$this, 'registerUserGroupHooks']));
 		$context->injectFn(Closure::fromCallable([$this, 'registerCommentsEntity']));
 		$context->injectFn(Closure::fromCallable([$this, 'registerCommentsEventHandler']));
@@ -112,6 +112,8 @@ class Application20 extends App implements IBootstrap {
 
 		$context->registerSearchProvider(DeckProvider::class);
 		$context->registerDashboardWidget(DeckWidget::class);
+
+		$context->registerEventListener(BeforeTemplateRenderedEvent::class, BeforeTemplateRenderedListener::class);
 	}
 
 	public function registerNotifications(NotificationManager $notificationManager): void {
diff --git a/lib/Listeners/BeforeTemplateRenderedListener.php b/lib/Listeners/BeforeTemplateRenderedListener.php
new file mode 100644
index 000000000..dadba496b
--- /dev/null
+++ b/lib/Listeners/BeforeTemplateRenderedListener.php
@@ -0,0 +1,45 @@
+<?php
+/**
+ * @copyright Copyright (c) 2020 Julius Härtl <jus@bitgrid.net>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+declare(strict_types=1);
+
+
+namespace OCA\Deck\Listeners;
+
+use OCP\AppFramework\Http\Events\BeforeTemplateRenderedEvent;
+use OCP\EventDispatcher\Event;
+use OCP\EventDispatcher\IEventListener;
+use OCP\Util;
+
+class BeforeTemplateRenderedListener implements IEventListener {
+	public function handle(Event $event): void {
+		if (!($event instanceof BeforeTemplateRenderedEvent)) {
+			return;
+		}
+
+		if (!$event->isLoggedIn()) {
+			return;
+		}
+		Util::addStyle('deck', 'deck');
+	}
+}