diff --git a/lib/fog/joyent/models/compute/keys.rb b/lib/fog/joyent/models/compute/keys.rb
index 81cce18b0..7ab1d9dfb 100644
--- a/lib/fog/joyent/models/compute/keys.rb
+++ b/lib/fog/joyent/models/compute/keys.rb
@@ -22,8 +22,8 @@ module Fog
         end
 
         def create(params = {})
-          raise ArgumentError, "Key name required" unless params.key?(:name)
-          raise ArgumentError, "Key body required" unless params.key?(:body)
+          raise ArgumentError, "option [name] required" unless params.key?(:name)
+          raise ArgumentError, "option [key] required" unless params.key?(:key)
 
           self.connection.create_key(params)
         end