diff --git a/packages/jest-preset/jest/setup.js b/packages/jest-preset/jest/setup.js
index 702fdb33a98a..cc29494c1266 100644
--- a/packages/jest-preset/jest/setup.js
+++ b/packages/jest-preset/jest/setup.js
@@ -44,6 +44,7 @@ Object.defineProperties(global, {
     enumerable: true,
     value: {
       // $FlowFixMe[method-unbinding]
+      // $FlowFixMe[incompatible-type]
       now: jest.fn(Date.now),
     },
     writable: true,