diff --git a/lib/active_merchant/billing/gateways/iridium.rb b/lib/active_merchant/billing/gateways/iridium.rb
index 6c7f5198ebb..b369b9a8dc1 100644
--- a/lib/active_merchant/billing/gateways/iridium.rb
+++ b/lib/active_merchant/billing/gateways/iridium.rb
@@ -15,7 +15,7 @@ class IridiumGateway < Gateway
       self.money_format = :cents
       
       # The card types supported by the payment gateway
-      self.supported_cardtypes = [:visa, :master, :american_express, :discover]
+      self.supported_cardtypes = [:visa, :master, :american_express, :discover, :maestro, :jcb, :solo, :diners_club]
       
       # The homepage URL of the gateway
       self.homepage_url = 'http://www.iridiumcorp.co.uk/'