diff --git a/db/seeds.rb b/db/seeds.rb
index 027a107f1ea511c9a03c134d08f55821d342f118..329fa7b2e6f5259395c3187ac6972dbecb2203e6 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -72,11 +72,13 @@ Conference.find_or_create_by!(slug: "38c3-more").tap do |c|
   c.save!
 end
 
-%w[coverage fog comedy adjust forge fail vigorous promise chemistry conception meat storage certain warm develop civilian cousin injection hammer health appetite conventional good snake grant suspect atmosphere linen wrong deal calf sea management silence watch nuance loan quit convert failure bracket slice sweat treaty plot still chimpanzee assume functional marsh dream mail state dorm kid formation secular agile beach guide salesperson merit goalkeeper incongruous cart pig joystick regulation apparatus myth patent glue behead flu departure spectrum parking indication delay hesitate viable lay treat cooperative sensation auction sphere stain tap pass].each do |username|
-  User.find_or_create_by(name: username).tap do |u|
-    u.email = "c3lingo+#{username}@x.moeffju.net"
-    u.invitation_token = "gargamel"
-    u.save!
+if Rails.env.development?
+  %w[coverage fog comedy adjust forge fail vigorous promise chemistry conception meat storage certain warm develop civilian cousin injection hammer health appetite conventional good snake grant suspect atmosphere linen wrong deal calf sea management silence watch nuance loan quit convert failure bracket slice sweat treaty plot still chimpanzee assume functional marsh dream mail state dorm kid formation secular agile beach guide salesperson merit goalkeeper incongruous cart pig joystick regulation apparatus myth patent glue behead flu departure spectrum parking indication delay hesitate viable lay treat cooperative sensation auction sphere stain tap pass].each do |username|
+    User.find_or_create_by(name: username).tap do |u|
+      u.email = "c3lingo+#{username}@x.moeffju.net"
+      u.invitation_token = "gargamel"
+      u.save!
+    end
   end
 end