diff --git a/src/helpers/calculateDayInterval.test.js b/src/helpers/calculateDayInterval.test.js
index 65aa63578..7b244a8a6 100644
--- a/src/helpers/calculateDayInterval.test.js
+++ b/src/helpers/calculateDayInterval.test.js
@@ -1,4 +1,4 @@
-import calculateDayInterval from './calculateDayInterval'
+import {calculateDayInterval} from './calculateDayInterval'
 
 const days = {
     monday:    1,