diff --git a/src/core/dom.js b/src/core/dom.js
index 80bd3e6ad..ad3c42659 100644
--- a/src/core/dom.js
+++ b/src/core/dom.js
@@ -532,7 +532,7 @@ const escape_css_id = (id) => {
 };
 
 /**
- * Get a universally unique id (uuid) for a DOM element.
+ * Set and get a universally unique id (uuid) for a DOM element.
  *
  * This method returns a uuid for the given element. On the first call it will
  * generate a uuid and store it on the element.
diff --git a/src/core/uuid.test.js b/src/core/uuid.test.js
index d70c337a0..fdfd74f7b 100644
--- a/src/core/uuid.test.js
+++ b/src/core/uuid.test.js
@@ -19,4 +19,8 @@ describe("uuid", function () {
 
         window.crypto.randomUUID = orig_randomUUID;
     });
+
+    it("the uuid is unique", function () {
+        expect(create_uuid()).not.toBe(create_uuid());
+    });
 });