diff --git a/email_client.py b/email_client.py
index c444460..d4fda8f 100644
--- a/email_client.py
+++ b/email_client.py
@@ -185,7 +185,7 @@ class Participation(object):
         header = ["LastName", "FirstName", "eMail", "Phone", "Institute", "Street", "City",
                   "RegDate", "CareerStage", "Fee", "FarewellEvent", "GwinnerAward", "LabTour", "Icebreaker",
                   "FoodVegetarian", "FoodVegan", "FoodGlutenFree", "FoodNoPref"]
-        values = [self._first_name, self._last_name, self._email, self._phone, self._institution,
+        values = [self._last_name, self._first_name, self._email, self._phone, self._institution,
                   self._address_street, "%s %s" % (self._address_zip, self._address_city),
                   self.registration_date.isoformat(), self._role, str(self.amount_due), str(self.farewell_event),
                   str(self.gwinner_award), str(self.labtour), str(self.icebreaker), str(self._food_vegi), str(self._food_vegan),