diff --git a/packages/rrweb-snapshot/src/rebuild.ts b/packages/rrweb-snapshot/src/rebuild.ts
index 10bf067a76..e32d4ca876 100644
--- a/packages/rrweb-snapshot/src/rebuild.ts
+++ b/packages/rrweb-snapshot/src/rebuild.ts
@@ -62,6 +62,24 @@ function escapeRegExp(str: string) {
   return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); // $& means the whole matched string
 }
 
+// Check if parentheses are balanced
+function areParenthesesBalanced(str: string) {
+  let balance = 0;
+
+  for (const char of str) {
+      if (char === '(') {
+          balance++;
+      } else if (char === ')') {
+          balance--;
+          if (balance < 0) {
+              return false;
+          }
+      }
+  }
+
+  return balance === 0; // Balanced if balance is 0
+}
+
 const HOVER_SELECTOR = /([^\\]):hover/;
 const HOVER_SELECTOR_GLOBAL = new RegExp(HOVER_SELECTOR.source, 'g');
 export function addHoverClass(cssText: string, cache: BuildCache): string {
@@ -81,7 +99,9 @@ export function addHoverClass(cssText: string, cache: BuildCache): string {
     if ('selectors' in rule) {
       (rule.selectors || []).forEach((selector: string) => {
         if (HOVER_SELECTOR.test(selector)) {
-          selectors.push(selector);
+          if (areParenthesesBalanced(selector)) {
+            selectors.push(selector);
+          }
         }
       });
     }
diff --git a/packages/rrweb-snapshot/test/rebuild.test.ts b/packages/rrweb-snapshot/test/rebuild.test.ts
index 357cd2fb3c..eed13b846c 100644
--- a/packages/rrweb-snapshot/test/rebuild.test.ts
+++ b/packages/rrweb-snapshot/test/rebuild.test.ts
@@ -124,6 +124,11 @@ describe('rebuild', function () {
       expect(addHoverClass(cssText, cache)).toEqual(cssText);
     });
 
+    it('check that parentheses are balanced', () => {
+      const cssText = '[_nghost-ng-c4172599085]:not(.fit-content).aim-select:hover:not(:disabled, [_nghost-ng-c4172599085]:not(.fit-content).aim-select--disabled, [_nghost-ng-c4172599085]:not(.fit-content).aim-select--invalid, [_nghost-ng-c4172599085]:not(.fit-content).aim-select--active) { border-color: rgb(84, 84, 84); }';
+      expect(addHoverClass(cssText, cache)).toEqual(cssText);
+    });
+
     // this benchmark is unreliable when run in parallel with other tests
     it.skip('benchmark', () => {
       const cssText = fs.readFileSync(