diff --git a/test/behaviour.js b/test/behaviour.js
new file mode 100644
index 0000000..229519e
--- /dev/null
+++ b/test/behaviour.js
@@ -0,0 +1,27 @@
+import test from 'ava';
+import Vain from '..';
+
+test('Vain lexicographically orders multisig pubkeys (BIP 67)', t => {
+	const origPubkeys = [
+		Buffer.from('030000000000000000000000000000000000000000000000000000000000000002', 'hex'),
+		Buffer.from('030000000000000000000000000000000000000000000000000000000000000001', 'hex'),
+		Buffer.from('030000000000000000000000000000000000000000000000000000000000000003', 'hex')
+	];
+	const options = {
+		keyFormat: 'multisig',
+		addressFormat: 'p2sh',
+		prefix: 'A',
+		pubkeys: origPubkeys,
+		m: 2
+	};
+	const vain = new Vain(options);
+	const {pubkeys} = vain.generate();
+
+	const origPubkeysSorted = pubkeys.filter(pubkey => origPubkeys.includes(pubkey));
+
+	t.deepEqual(origPubkeysSorted, [
+		Buffer.from('030000000000000000000000000000000000000000000000000000000000000001', 'hex'),
+		Buffer.from('030000000000000000000000000000000000000000000000000000000000000002', 'hex'),
+		Buffer.from('030000000000000000000000000000000000000000000000000000000000000003', 'hex')
+	]);
+});