diff --git a/src/app.ts b/src/app.ts
index 5f51b4c0..ef306da3 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -296,7 +296,8 @@ export class GBServer {
 
       const options1 = {
         passphrase: process.env.CERTIFICATE_PASSPHRASE,
-        pfx: fs.readFileSync(process.env.CERTIFICATE_PFX)
+        pfx: fs.readFileSync(process.env.CERTIFICATE_PFX),
+        ca: fs.readFileSync(process.env.CERTIFICATE_CA)
       };
 
       const httpsServer = https.createServer(options1, server).listen(port, mainCallback);