diff --git a/pinaxcon/registrasion/models.py b/pinaxcon/registrasion/models.py
index c9cb3f53..f60e519f 100644
--- a/pinaxcon/registrasion/models.py
+++ b/pinaxcon/registrasion/models.py
@@ -216,4 +216,5 @@ class AttendeeProfile(rego.AttendeeProfileBase):
         return wrap(self.name, 15, break_long_words=False)[0]
 
     def last_name(self):
-        return wrap(self.name, 15, break_long_words=False)[1]
+        names = wrap(self.name, 15, break_long_words=False)
+        return names[1] if len(names) > 1 else ''
\ No newline at end of file