diff --git a/emencia/django/newsletter/mailer.py b/emencia/django/newsletter/mailer.py
index 355dced8..531d5caf 100644
--- a/emencia/django/newsletter/mailer.py
+++ b/emencia/django/newsletter/mailer.py
@@ -315,7 +315,7 @@ class NewsLetterSender(object):
 
         # include preheader
         if self.newsletter.preheader:
-            if not self.ab_testing or self.ab_state == Newsletter.A:
+            if not self.newsletter.ab_testing or self.ab_state == Newsletter.A:
                 preheader = self.newsletter.preheader.format(**self.build_preheader_ctx(contact))
             else:
                 preheader = self.newsletter.preheader2.format(**self.build_preheader_ctx(contact))