diff --git a/packages/check/match_test.js b/packages/check/match_test.js
index 33f2a724407..59c20fb69cd 100644
--- a/packages/check/match_test.js
+++ b/packages/check/match_test.js
@@ -446,7 +446,7 @@ Meteor.isServer && Tinytest.addAsync('check - non-fiber check works', (test, onC
   // Get out of a fiber with process.nextTick and ensure that we can still use
   // check.
   process.nextTick(() => {
-    const success = true;
+    let success = true;
     if (Fiber.current) {
       success = false;
     }