diff --git a/tests/stalled-mysql-test.js b/tests/stalled-mysql-test.js
index ceeb498e95224f90c8e5d945e85967e1b46bdcdc..988bb2f9fffb35c61ab5bed427ef78599eaee826 100755
--- a/tests/stalled-mysql-test.js
+++ b/tests/stalled-mysql-test.js
@@ -330,7 +330,7 @@ suite.addBatch({
       expiration.setTime(new Date().valueOf() + 60 * 60 * 1000);
       jwcrypto.cert.sign(g_keypair.publicKey, {email: TEST_EMAIL},
                         {expiresAt: expiration, issuedAt: new Date(), issuer: TEST_DOMAIN},
-                        g_privKey, this.callback);
+                         null, g_privKey, this.callback);
     },
     "works swimmingly": function(err, cert) {
       g_cert = cert;