diff --git a/lib/zimbra/appointment.rb b/lib/zimbra/appointment.rb
index ee8dcd6..2fd1935 100644
--- a/lib/zimbra/appointment.rb
+++ b/lib/zimbra/appointment.rb
@@ -261,6 +261,13 @@ def cancel(appointment, invite_id)
       xml = invoke("n2:CancelAppointmentRequest") do |message|
         Builder.cancel(message, appointment.id, invite_id)
       end
+
+      xml = invoke("n2:ItemActionRequest") do |message|
+        message.add "action" do |action|
+          action.set_attr 'id', appointment.id
+          action.set_attr 'op', 'delete'
+        end
+      end
     end
     
     class Builder
diff --git a/lib/zimbra/version.rb b/lib/zimbra/version.rb
index 572d272..53185a6 100644
--- a/lib/zimbra/version.rb
+++ b/lib/zimbra/version.rb
@@ -1,3 +1,3 @@
 module Zimbra
-  VERSION = "0.0.10"
+  VERSION = "0.0.11"
 end