diff --git a/packages/util/src/environment.ts b/packages/util/src/environment.ts
index 11eb26755db..998000308c3 100644
--- a/packages/util/src/environment.ts
+++ b/packages/util/src/environment.ts
@@ -80,8 +80,8 @@ export function isNode(): boolean {
 
 /**
  * Detect Browser Environment
- * Note: This will return true for JSDOM (e.g. Jest) as it is mimicking
- * a browser, and should not lead to assuming all browser APIs are
+ * Note: This will return true for certain test frameworks that are incompletely
+ * mimicking a browser, and should not lead to assuming all browser APIs are
  * available.
  */
 export function isBrowser(): boolean {