diff --git a/.eslintrc b/.eslintrc
index 6a9f7a9..c3147b5 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -1,7 +1,8 @@
 {
 	"extends": "airbnb-base",
 	"env": {
-		"node": true
+		"node": true,
+		"mocha": true
 	},
 	"parserOptions": {
 		"ecmaVersion": 8,
diff --git a/lib/orders/H004/response.js b/lib/orders/H004/response.js
index 7fb7a51..66239df 100644
--- a/lib/orders/H004/response.js
+++ b/lib/orders/H004/response.js
@@ -124,8 +124,8 @@ module.exports = (xml, keys) => ({
 
 		for (let i = 0; i < keyNodes.length; i++) {
 			const type = lastChild(keyNodes[i].parentNode).textContent;
-			const modulus = xpath.select("//*[local-name(.)='Modulus']", keyNodes[i])[0].textContent;
-			const exponent = xpath.select("//*[local-name(.)='Exponent']", keyNodes[i])[0].textContent;
+			const modulus = xpath.select(".//*[local-name(.)='Modulus']", keyNodes[i])[0].textContent;
+			const exponent = xpath.select(".//*[local-name(.)='Exponent']", keyNodes[i])[0].textContent;
 
 			const mod = new BN(Buffer.from(modulus, 'base64'), 2).toBuffer();
 			const exp = new BN(Buffer.from(exponent, 'base64')).toNumber();
diff --git a/package.json b/package.json
index 5fec538..16e256b 100644
--- a/package.json
+++ b/package.json
@@ -31,8 +31,10 @@
 		"xpath": "0.0.27"
 	},
 	"devDependencies": {
+		"chai": "^4.2.0",
 		"eslint": "^4.19.1",
 		"eslint-config-airbnb-base": "^12.1.0",
-		"eslint-plugin-import": "^2.12.0"
+		"eslint-plugin-import": "^2.12.0",
+		"mocha": "^6.1.4"
 	}
 }
diff --git a/test/responseParser.js b/test/responseParser.js
new file mode 100644
index 0000000..a44eaa6
--- /dev/null
+++ b/test/responseParser.js
@@ -0,0 +1,43 @@
+'use strict';
+
+const { assert } = require('chai');
+const H004Response = require('../lib/orders/H004/response');
+
+describe('H004 response parsing', () => {
+	it('parses bank keys', () => {
+		const response = H004Response('<xml/>', {});
+
+		const x002mod = 'ntbX6WFjAJP5RyH4ogDG/26wZGzEJXsTudyvcgXmUdk1AExCNqArXDiSlGXpVNq4BKddUMFUmVOyvkdNckPRV2mk3uHNCE5T3tFKQI3FlwHSJHvPSpb9gtHnsK03jByMigWjhTKvsjIdfLVay5m5Bctxq9+5JMHwlNk7MlVXBQcqaFiHFFS1lPfA3Wk1bptPeeGyYcP0+U798oQWnCABKwS8hmYcp5xBtozGoRj9L/NDE68pdP8o/wTKNwT4Jo5nQKYfDsgO4R+z9vVv37Htp6bWhK8Jw3tpkcd3JnkYWx+Ylg0XBpg8LfjFhY2Jc7FqLlx0Bn0Y3PRLI1apxgC85w==';
+		const e002mod = '4eOGrzcJHVzbEgZTmyPYUIq9kFoua8Ure1Mvyq6XlawFgCWskfu/xSKNLIMJ7H675wl/5y0Oy16P/b6pJEhWrzOw8omW46PBDTaXw9BDYBTuBblluz1yUnzpgfblP8gkRmxAo+QMIskmwdSzuZMiJcLNSzu/bkmLHK2RdrVYMAZLlB6QXTykdenPZtNmc2z4VU6TRmGljAwg2VUNF6iQoucbzDUuca+yUo3fiXZp69nfXv81X2ND+p1ir6zQpx7tbOdfauw0sEKI/Z/lC+E4fMrMlh/ZvOxSYUMA55J4liC3aUV3mTR3dPJHWu1aD1a7EfJnNw0eHLwlB+36qfgGuw==';
+
+		response.orderData = () => `<?xml version="1.0" encoding="UTF-8"?>
+			<HPBResponseOrderData xmlns="urn:org:ebics:H004" xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
+			  <AuthenticationPubKeyInfo>
+				<PubKeyValue>
+				  <ds:RSAKeyValue>
+					<ds:Modulus>${x002mod}</ds:Modulus>
+					<ds:Exponent>AQAB</ds:Exponent>
+				  </ds:RSAKeyValue>
+				  <TimeStamp>2015-02-25T08:01:13.061Z</TimeStamp>
+				</PubKeyValue>
+				<AuthenticationVersion>X002</AuthenticationVersion>
+			  </AuthenticationPubKeyInfo>
+			  <EncryptionPubKeyInfo>
+				<PubKeyValue>  
+				  <ds:RSAKeyValue>
+					<ds:Modulus>${e002mod}</ds:Modulus>
+					<ds:Exponent>AQAB</ds:Exponent>
+				  </ds:RSAKeyValue>
+				  <TimeStamp>2015-02-25T08:01:12.344Z</TimeStamp>
+				</PubKeyValue>
+				<EncryptionVersion>E002</EncryptionVersion>
+			  </EncryptionPubKeyInfo>
+			  <HostID>SBKPR01</HostID>
+			</HPBResponseOrderData>`;
+
+		const bankKeys = response.bankKeys();
+
+		assert.equal(bankKeys.bankX002.mod.toString('base64'), x002mod);
+		assert.equal(bankKeys.bankE002.mod.toString('base64'), e002mod);
+	});
+});