diff --git a/lib/httpsServerMgr.js b/lib/httpsServerMgr.js
index d1d162baa..f73a54656 100644
--- a/lib/httpsServerMgr.js
+++ b/lib/httpsServerMgr.js
@@ -68,7 +68,7 @@ function createHttpsSNIServer(port, handler) {
 
   return new Promise((resolve) => {
     const server = https.createServer({
-      secureOptions: constants.SSL_OP_NO_SSLv3 || constants.SSL_OP_NO_TLSv1,
+      secureOptions: constants.SSL_OP_NO_SSLv3 | constants.SSL_OP_NO_TLSv1,
       SNICallback: SNIPrepareCert,
     }, handler).listen(port);
     resolve(server);
@@ -82,7 +82,7 @@ function createHttpsIPServer(ip, port, handler) {
     certMgr.getCertificate(ip, (err, keyContent, crtContent) => {
       if (err) return reject(err);
       const server = https.createServer({
-        secureOptions: constants.SSL_OP_NO_SSLv3 || constants.SSL_OP_NO_TLSv1,
+        secureOptions: constants.SSL_OP_NO_SSLv3 | constants.SSL_OP_NO_TLSv1,
         key: keyContent,
         cert: crtContent,
       }, handler).listen(port);