diff --git a/app/models/color.rb b/app/models/color.rb
index 42ee4415..e0c1aa70 100644
--- a/app/models/color.rb
+++ b/app/models/color.rb
@@ -21,7 +21,8 @@ class Color < ApplicationRecord
     end
   end
 
-  def example_pet_type(preferred_species: Species.first)
+  def example_pet_type(preferred_species: nil)
+    preferred_species ||= Species.first
     pet_types.order([Arel.sql("species_id = ? DESC"), preferred_species.id],
       "species_id ASC").first
   end