diff --git a/apps/dav/lib/CalDAV/Calendar.php b/apps/dav/lib/CalDAV/Calendar.php
index c03bf98ee3..75e78daf50 100644
--- a/apps/dav/lib/CalDAV/Calendar.php
+++ b/apps/dav/lib/CalDAV/Calendar.php
@@ -142,6 +142,12 @@ 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 fd74da0214..d9ea25b268 100644
--- a/apps/dav/tests/unit/CalDAV/CalendarTest.php
+++ b/apps/dav/tests/unit/CalDAV/CalendarTest.php
@@ -209,6 +209,12 @@ class CalendarTest extends TestCase {
 					'principal' => 'user2',
 					'protected' => true
 				];
+			} else {
+				$expectedAcl[] = [
+					'privilege' => '{DAV:}write-properties',
+					'principal' => 'user2',
+					'protected' => true
+				];
 			}
 		}
 		$this->assertEquals($expectedAcl, $acl);