diff --git a/codes/javascript/chapter_hashing/simple_hash.js b/codes/javascript/chapter_hashing/simple_hash.js
index 5c2a65409..4287515b3 100644
--- a/codes/javascript/chapter_hashing/simple_hash.js
+++ b/codes/javascript/chapter_hashing/simple_hash.js
@@ -31,7 +31,7 @@ function xorHash(key) {
     for (const c of key) {
         hash ^= c.charCodeAt(0);
     }
-    return hash & MODULUS;
+    return hash % MODULUS;
 }
 
 /* 旋转哈希 */
diff --git a/codes/typescript/chapter_hashing/simple_hash.ts b/codes/typescript/chapter_hashing/simple_hash.ts
index 9d2be67c1..54c1fa283 100644
--- a/codes/typescript/chapter_hashing/simple_hash.ts
+++ b/codes/typescript/chapter_hashing/simple_hash.ts
@@ -31,7 +31,7 @@ function xorHash(key: string): number {
     for (const c of key) {
         hash ^= c.charCodeAt(0);
     }
-    return hash & MODULUS;
+    return hash % MODULUS;
 }
 
 /* 旋转哈希 */