diff --git a/src/bitarray/impl.ts b/src/bitarray/impl.ts
index 4d3435c..82007c5 100644
--- a/src/bitarray/impl.ts
+++ b/src/bitarray/impl.ts
@@ -199,7 +199,7 @@ export class BitArrayImpl implements BitArray {
 
     return other instanceof BitArrayImpl ?
       arrayLike(this.#bits).zip(arrayLike(other.#bits)).all(([a, b]) => (a & b) === b) :
-      sequence(this).zip(sequence(other)).where(([, b]) => b).all(([a, b]) => a && b);
+      sequence(this).zip(sequence(other)).where(([, b]) => b).all(([a]) => a);
   }
 
   public intersects(other: BitArray) {
diff --git a/src/bitarray/index.ts b/src/bitarray/index.ts
index b2372f9..8fa2b94 100644
--- a/src/bitarray/index.ts
+++ b/src/bitarray/index.ts
@@ -2,8 +2,7 @@ import { asArray } from "../utils.js";
 import { EmptyBitArray, BitArrayImpl } from "./impl.js";
 import { BitArray } from "./types.js";
 
-const emptyBitArray = new EmptyBitArray();
-export const EMPTY = emptyBitArray;
+export const EMPTY = new EmptyBitArray();
 
 export function create(length: number): BitArray {
   if (length < 0) {