diff --git a/lib/sf/session.rb b/lib/sf/session.rb
index 1cd1974..0af5674 100644
--- a/lib/sf/session.rb
+++ b/lib/sf/session.rb
@@ -55,7 +55,7 @@ def timestamp
   end
 
   def ready_to_publish?
-    required_attrs = %w(title__c timestamp__c start_time__c date__c end_time__c)
+    required_attrs = %w(title__c start_time__c date__c end_time__c)
     ready = true
     required_attrs.each do |attr|
       if self.send(attr).blank? 
diff --git a/lib/sf/version.rb b/lib/sf/version.rb
index cdfc9e8..59ef1c2 100644
--- a/lib/sf/version.rb
+++ b/lib/sf/version.rb
@@ -1,3 +1,3 @@
 module Sf
-  VERSION = "0.1.7"
+  VERSION = "0.1.8"
 end