diff --git a/test/parallel/test-tls-multi-key.js b/test/parallel/test-tls-multi-key.js
index 63b0363327c..c5e66f3980b 100644
--- a/test/parallel/test-tls-multi-key.js
+++ b/test/parallel/test-tls-multi-key.js
@@ -160,9 +160,7 @@ function test(options) {
         version: 'TLSv1.2'
       });
       assert.strictEqual(ecdsa.getPeerCertificate().subject.CN, eccCN);
-      // XXX(sam) certs don't currently include EC key info, so depend on
-      // absence of RSA key info to indicate key is EC.
-      assert(!ecdsa.getPeerCertificate().exponent, 'not cert for an RSA key');
+      assert.strictEqual(ecdsa.getPeerCertificate().asn1Curve, 'prime256v1');
       ecdsa.end();
       connectWithRsa();
     }));