diff --git a/src/helpers/contains.js b/src/helpers/contains.js
index 70cc1c0..e90e5b2 100644
--- a/src/helpers/contains.js
+++ b/src/helpers/contains.js
@@ -1,6 +1,6 @@
 // Checks to see if a parent element contains a child element
 /* eslint no-param-reassign:0, no-cond-assign:0 */
-export function contains(parent, child) {
+export default function contains(parent, child) {
   do {
     if (parent === child) {
       return true;