diff --git a/tests/jsPsych/timelines.test.js b/tests/jsPsych/timelines.test.js
index c86626b6..1c6d8efc 100644
--- a/tests/jsPsych/timelines.test.js
+++ b/tests/jsPsych/timelines.test.js
@@ -365,7 +365,7 @@ describe('nested timelines', function() {
     };
 
     jsPsych.init({
-      timeline: trials
+      timeline: [trials]
     });
 
     expect(jsPsych.getDisplayElement().innerHTML).toMatch('foo');