diff --git a/src/lib/es2022.regexp.d.ts b/src/lib/es2022.regexp.d.ts
index b4a547acd65e3..76aa8706922ea 100644
--- a/src/lib/es2022.regexp.d.ts
+++ b/src/lib/es2022.regexp.d.ts
@@ -6,7 +6,7 @@ interface RegExpExecArray {
     indices?: RegExpIndicesArray;
 }
 
-interface RegExpIndicesArray extends Array<[number, number]> {
+interface RegExpIndicesArray extends Array<[number, number] | undefined> {
     groups?: {
         [key: string]: [number, number];
     };