diff --git a/src/algorithms/string/rabin-karp/__test__/rabinKarp.test.js b/src/algorithms/string/rabin-karp/__test__/rabinKarp.test.js
index ba759536..2a20ecbc 100644
--- a/src/algorithms/string/rabin-karp/__test__/rabinKarp.test.js
+++ b/src/algorithms/string/rabin-karp/__test__/rabinKarp.test.js
@@ -37,6 +37,7 @@ describe('rabinKarp', () => {
   it('should work with UTF symbols', () => {
     expect(rabinKarp('a\u{ffff}', '\u{ffff}')).toBe(1);
     expect(rabinKarp('\u0000耀\u0000', '耀\u0000')).toBe(1);
-    // expect(rabinKarp('a\u{10000}', '\u{10000}')).toBe(1);
+    expect(rabinKarp('a\u{20000}', '\u{20000}')).toBe(1);
+    expect(rabinKarp('ab\u{20005}a', '\u{20005}a')).toBe(2);
   });
 });