diff --git a/apps/dav/lib/CalDAV/Activity/Filter/Todo.php b/apps/dav/lib/CalDAV/Activity/Filter/Todo.php
index 42ee074085..312bb6c472 100644
--- a/apps/dav/lib/CalDAV/Activity/Filter/Todo.php
+++ b/apps/dav/lib/CalDAV/Activity/Filter/Todo.php
@@ -79,7 +79,7 @@ class Todo implements IFilter {
 	 * @since 11.0.0
 	 */
 	public function filterTypes(array $types) {
-		return array_intersect(['calendar_todo'], $types);
+		return array_intersect(['calendar_todos'], $types);
 	}
 
 	/**
diff --git a/apps/dav/tests/unit/CalDAV/Activity/Filter/TodoTest.php b/apps/dav/tests/unit/CalDAV/Activity/Filter/TodoTest.php
index 54a5a6f5f9..3c6ac2a5c5 100644
--- a/apps/dav/tests/unit/CalDAV/Activity/Filter/TodoTest.php
+++ b/apps/dav/tests/unit/CalDAV/Activity/Filter/TodoTest.php
@@ -67,9 +67,9 @@ class TodoTest extends TestCase {
 	public function dataFilterTypes() {
 		return [
 			[[], []],
-			[['calendar_todo'], ['calendar_todo']],
-			[['calendar', 'calendar_event', 'calendar_todo'], ['calendar_todo']],
-			[['calendar', 'calendar_todo', 'files'], ['calendar_todo']],
+			[['calendar_todos'], ['calendar_todos']],
+			[['calendar', 'calendar_event', 'calendar_todos'], ['calendar_todos']],
+			[['calendar', 'calendar_todos', 'files'], ['calendar_todos']],
 		];
 	}