diff --git a/package.json b/package.json
index 04abe44..b84f84d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wetty",
-  "version": "1.1.6",
+  "version": "1.1.7",
   "description": "WeTTY = Web + TTY. Terminal access in browser over http/https",
   "homepage": "https://github.com/krishnasrinivas/wetty",
   "repository": {
diff --git a/src/server/ssl.ts b/src/server/ssl.ts
index 1ab223d..958185b 100644
--- a/src/server/ssl.ts
+++ b/src/server/ssl.ts
@@ -4,7 +4,7 @@ import { isUndefined } from 'lodash';
 import { SSL, SSLBuffer } from './interfaces';
 
 export default async function loadSSL(ssl: SSL): Promise<SSLBuffer> {
-  if (isUndefined(ssl.key) || isUndefined(ssl.cert)) return {};
+  if (isUndefined(ssl) || isUndefined(ssl.key) || isUndefined(ssl.cert)) return {};
   const files = [readFile(resolve(ssl.key)), readFile(resolve(ssl.cert))];
   const [key, cert]: Buffer[] = await Promise.all(files);
   return { key, cert };