diff --git a/test/helpers.js b/test/helpers.js
index 2a03e0f436..5e9428243b 100644
--- a/test/helpers.js
+++ b/test/helpers.js
@@ -68,6 +68,7 @@ window.scrollTo = function(pageXOffset, pageYOffset) {
 
 export function env() {
 	window.document.title = '';
+	window.document.head.innerHTML = '';
 	window.document.body.innerHTML = '<main></main>';
 
 	return window;