diff --git a/frontend/test/components/Calendar.unit.test.js b/frontend/test/components/Calendar.unit.test.js
index eab63d54f21893c36db88fbf4657f40610a0ee57..551d5fde3e8682e0ff562de482ade38ea68e91c5 100644
--- a/frontend/test/components/Calendar.unit.test.js
+++ b/frontend/test/components/Calendar.unit.test.js
@@ -21,6 +21,7 @@ describe("Calendar", () => {
     });
 
     it("should switch months correctly", () => {
+        mockDate.set('2018-01-12T12:00:00Z', 0);
         const calendar = mount(
             <Calendar selected={moment("2018-01-01")} onChange={() => {}}/>
         );