diff --git a/lib/sf/session.rb b/lib/sf/session.rb
index d1c4af8..7610ca4 100644
--- a/lib/sf/session.rb
+++ b/lib/sf/session.rb
@@ -31,7 +31,7 @@ def proposal_attrs
     attrs['submitter_phone__c'] = self.proposal.submitter_phone
     attrs['cms_proposal_id__c'] = self.proposal.id
     if session_type_id = self.proposal.session_type_id
-      sf_session_type = Sf::SessionType.find_by(reg_event_id__c: sf_event.Id, cms_session_type_id__c: session_type_id) 
+      sf_session_type = Sf::SessionType.find_by(reg_event__c: sf_event.Id, cms_session_type_id__c: session_type_id) 
       attrs['session_type__c'] = sf_session_type.Id unless sf_session_type.blank? 
     end
     if primary_track_id = self.proposal.primary_track_id