diff --git a/lib/fog/openstack/models/compute/server.rb b/lib/fog/openstack/models/compute/server.rb
index 9f2b0a9c3..7d63fc3ec 100644
--- a/lib/fog/openstack/models/compute/server.rb
+++ b/lib/fog/openstack/models/compute/server.rb
@@ -27,6 +27,7 @@ module Fog
 
         def initialize(attributes={})
           @connection = attributes[:connection]
+          attributes[:metadata] = {}
           super
         end