diff --git a/src/cli/one_helper/oneuser_helper.rb b/src/cli/one_helper/oneuser_helper.rb
index 7ce551f4ca..b481f9291b 100644
--- a/src/cli/one_helper/oneuser_helper.rb
+++ b/src/cli/one_helper/oneuser_helper.rb
@@ -118,7 +118,7 @@ class OneUserHelper < OpenNebulaHelper::OneHelper
 
                 key  = rc[1]
 
-                auth = X509Auth.new(:cert=>certs, :key=>key)
+                auth = X509Auth.new(:certs_pem=>certs, :key_pem=>key)
             rescue => e
                 return -1, e.message
             end