diff --git a/test/watch/index.js b/test/watch/index.js
index 76a957fb634..64b66b5cb97 100644
--- a/test/watch/index.js
+++ b/test/watch/index.js
@@ -250,6 +250,9 @@ describe('rollup.watch', () => {
 				format: 'cjs',
 				exports: 'auto'
 			},
+			watch: {
+				buildDelay: 300
+			},
 			plugins: {
 				buildStart() {
 					this.addWatchFile(WATCHED_ID);