diff --git a/apps/dav/lib/Server.php b/apps/dav/lib/Server.php
index b9f411ae7ece5..a401fb5704514 100644
--- a/apps/dav/lib/Server.php
+++ b/apps/dav/lib/Server.php
@@ -138,7 +138,7 @@ public function __construct(IRequest $request, $baseUri) {
 		$this->server->addPlugin($acl);
 
 		// calendar plugins
-		if ($this->requestIsForSubtree(['calendars', 'principals'])) {
+		if ($this->requestIsForSubtree(['calendars', 'public-calendars', 'principals'])) {
 			$this->server->addPlugin(new \OCA\DAV\CalDAV\Plugin());
 			$this->server->addPlugin(new \Sabre\CalDAV\ICSExportPlugin());
 			$this->server->addPlugin(new \OCA\DAV\CalDAV\Schedule\Plugin());