diff --git a/apps/dav/lib/CalDAV/Calendar.php b/apps/dav/lib/CalDAV/Calendar.php
index 9c56398b14..9f4e30710e 100644
--- a/apps/dav/lib/CalDAV/Calendar.php
+++ b/apps/dav/lib/CalDAV/Calendar.php
@@ -135,6 +135,12 @@ class Calendar extends \Sabre\CalDAV\Calendar implements IShareable {
 					'principal' => parent::getOwner(),
 					'protected' => true,
 				];
+			} else {
+				$acl[] = [
+					'privilege' => '{DAV:}write-properties',
+					'principal' => parent::getOwner(),
+					'protected' => true,
+				];
 			}
 		}
 		if ($this->isPublic()) {
diff --git a/apps/dav/tests/unit/CalDAV/CalendarTest.php b/apps/dav/tests/unit/CalDAV/CalendarTest.php
index cf295f0106..51ae6cd37c 100644
--- a/apps/dav/tests/unit/CalDAV/CalendarTest.php
+++ b/apps/dav/tests/unit/CalDAV/CalendarTest.php
@@ -205,6 +205,12 @@ class CalendarTest extends TestCase {
 					'principal' => 'user2',
 					'protected' => true
 				];
+			} else {
+				$expectedAcl[] = [
+					'privilege' => '{DAV:}write-properties',
+					'principal' => 'user2',
+					'protected' => true
+				];
 			}
 		}
 		$this->assertEquals($expectedAcl, $acl);