diff --git a/src/smartcontracts/code.spec.ts b/src/smartcontracts/code.spec.ts
index 0fa090df..1a5f3d94 100644
--- a/src/smartcontracts/code.spec.ts
+++ b/src/smartcontracts/code.spec.ts
@@ -32,6 +32,7 @@ describe("Code Class Tests", function() {
         const code = Code.fromHex(sampleHex);
         const hash = code.computeHash();
 
-        assert.instanceOf(hash, Hash);
+        assert.instanceOf(hash, Buffer);
+        assert.equal(hash.toString('hex'), 'ac86b78afd9bdda3641a47a4aff2a7ee26acd40cc534d63655e9dfbf3f890a02')
     });
 });
diff --git a/src/smartcontracts/code.ts b/src/smartcontracts/code.ts
index bd069387..54c540a3 100644
--- a/src/smartcontracts/code.ts
+++ b/src/smartcontracts/code.ts
@@ -38,11 +38,11 @@ export class Code {
         return Buffer.from(this.hex, "hex");
     }
 
-    computeHash(): Hash {
+    computeHash(): Buffer {
         const hash = createHasher(CODE_HASH_LENGTH)
             .update(this.valueOf())
-            .digest('hex')
+            .digest();
 
-        return new Hash(hash)
+        return Buffer.from(hash)
     }
 }