diff --git a/lib/cli.js b/lib/cli.js
index 67f5bbe1e..63dbfed5e 100644
--- a/lib/cli.js
+++ b/lib/cli.js
@@ -122,7 +122,7 @@ function afterConfigLoad() {
         };
 
         logger.logger.fatal([
-          'You need to specify "https.key" and "https.cert" to run https server',
+          'You need to specify "https.key", "https.cert" and "https.ca" to run https server',
           '',
           // commands are borrowed from node.js docs
           'To quickly create self-signed certificate, use:',