diff --git a/src/internal/util/isObject.ts b/src/internal/util/isObject.ts
index d9572aeaca..536a52eb4b 100644
--- a/src/internal/util/isObject.ts
+++ b/src/internal/util/isObject.ts
@@ -1,3 +1,3 @@
 export function isObject(x: any): x is Object {
-  return x != null && typeof x === 'object';
+  return x !== null && typeof x === 'object';
 }