diff --git a/lib/sf/session.rb b/lib/sf/session.rb
index 8326c46..64e1376 100644
--- a/lib/sf/session.rb
+++ b/lib/sf/session.rb
@@ -58,7 +58,7 @@ def ready_to_publish?
     required_attrs = %w(title__c abstract__c timestamp__c start_time__c date__c end_time__c)
     ready = true
     required_attrs.each do |attr|
-      if attr.blank? 
+      if self.send(attr).blank? 
         ready = false
         break
       end
diff --git a/lib/sf/version.rb b/lib/sf/version.rb
index ecbcc8b..a45e47d 100644
--- a/lib/sf/version.rb
+++ b/lib/sf/version.rb
@@ -1,3 +1,3 @@
 module Sf
-  VERSION = "0.1.4"
+  VERSION = "0.1.5"
 end