diff --git a/test/chart.ts b/test/chart.ts
index 64fb22db87..b7b69ac5c4 100644
--- a/test/chart.ts
+++ b/test/chart.ts
@@ -49,6 +49,7 @@ describe('Chart', () => {
 		clock = lolex.install({
 			now: new Date('2000-01-01 00:00:00')
 		});
+		done();
 	});
 
 	afterEach(done => {