diff --git a/db/migrate/20150530182857_populate_conference_id_in_personal_profiles.rb b/db/migrate/20150530182857_populate_conference_id_in_personal_profiles.rb
index ff151ea..fdbd02d 100644
--- a/db/migrate/20150530182857_populate_conference_id_in_personal_profiles.rb
+++ b/db/migrate/20150530182857_populate_conference_id_in_personal_profiles.rb
@@ -6,7 +6,10 @@ end
 
 class PopulateConferenceIdInPersonalProfiles < ActiveRecord::Migration
   def change
-    conference = Conference.first!
-    PersonalProfile.where(conference_id: nil).update_all(conference_id: conference.id)
+    conference = Conference.first
+
+    if conference
+      PersonalProfile.where(conference_id: nil).update_all(conference_id: conference.id)
+    end
   end
 end