diff --git a/test/data/x509.crt b/test/data/x509.crt
index d2c04ad..11f43d9 100644
--- a/test/data/x509.crt
+++ b/test/data/x509.crt
@@ -1,19 +1,19 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/test/data/x509.csr b/test/data/x509.csr
index 3a0f255..4b0da18 100644
--- a/test/data/x509.csr
+++ b/test/data/x509.csr
@@ -1,16 +1,16 @@
 -----BEGIN CERTIFICATE REQUEST-----
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 -----END CERTIFICATE REQUEST-----
diff --git a/test/data/x509.der b/test/data/x509.der
index e8a53eb..3f91529 100644
Binary files a/test/data/x509.der and b/test/data/x509.der differ
diff --git a/test/data/x509.key b/test/data/x509.key
index 175ca6f..f61fecd 100644
--- a/test/data/x509.key
+++ b/test/data/x509.key
@@ -1,27 +1,27 @@
 -----BEGIN RSA PRIVATE KEY-----
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 -----END RSA PRIVATE KEY-----
diff --git a/test/data/x509.pem b/test/data/x509.pem
index 2891ee7..6052aa1 100644
--- a/test/data/x509.pem
+++ b/test/data/x509.pem
@@ -1,46 +1,46 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
 -----BEGIN RSA PRIVATE KEY-----
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+1U8NHK8b3ZiIoGJ+msNzpdxrj62H3A6+Y+AsNY4SmUTXH9yjg+nukg==
 -----END RSA PRIVATE KEY-----
diff --git a/test/test.PayPro.js b/test/test.PayPro.js
index edaea53..b7419a6 100644
--- a/test/test.PayPro.js
+++ b/test/test.PayPro.js
@@ -334,7 +334,7 @@ describe('PayPro', function() {
       paypro.set('serialized_payment_details', pdbuf);
       paypro.set('pki_type', 'x509+sha256');
 
-      var key = require('fs').readFileSync(__dirname + '/data/x509.der');
+      var key = require('fs').readFileSync(__dirname + '/data/x509.pem');
       paypro.set('pki_data', key); // contains one or more x509 certs
       //paypro.set('pki_data', x509cert); // contains one or more x509 certs