diff --git a/components/sidebar/stolen-data.tsx b/components/sidebar/stolen-data.tsx
index 1bf56b5..b71a645 100644
--- a/components/sidebar/stolen-data.tsx
+++ b/components/sidebar/stolen-data.tsx
@@ -1,3 +1,4 @@
+import { useState } from 'react';
 import { getMemory } from '../../memory';
 import { RequestCluster } from '../../request-cluster';
 
@@ -20,6 +21,7 @@ export function StolenData({
     cookiesOrOriginOnly: boolean;
     detailsVisibility: boolean;
 }) {
+    const [changesCount, setChangesCount] = useState(0);
     if (!origin) {
         return (
             <div className="stolen-data-container">
@@ -34,12 +36,15 @@ export function StolenData({
             (cluster) => !cookiesOrOriginOnly || cluster.hasCookies() || cluster.exposesOrigin()
         );
     return (
-        <div className="stolen-data-container">
+        <div className={['stolen-data-container', `data-changes-count-${changesCount}`].join(' ')}>
             <span>Domeny{detailsVisibility ? ' oraz przesłane informacje' : null}</span>
             <br />
             <button
                 onClick={() => {
-                    clusters.forEach((cluster) => cluster.undoMark());
+                    clusters.forEach((cluster) => {
+                        cluster.undoMark();
+                    });
+                    setChangesCount(changesCount + 1);
                 }}
                 style={{ marginTop: '8px', lineHeight: '32px' }}
             >