diff --git a/lib/kaminari/models/configuration_methods.rb b/lib/kaminari/models/configuration_methods.rb
index 724f94a62..bb7a425ef 100644
--- a/lib/kaminari/models/configuration_methods.rb
+++ b/lib/kaminari/models/configuration_methods.rb
@@ -13,7 +13,7 @@ def paginates_per(val)
       # This model's default +per_page+ value
       # returns +default_per_page+ value unless explicitly overridden via <tt>paginates_per</tt>
       def default_per_page
-        @_default_per_page || Kaminari.config.default_per_page
+        @_default_per_page ||= Kaminari.config.default_per_page
       end
     end
   end