diff --git a/spec/models/unit_conversion_spec.rb b/spec/models/unit_conversion_spec.rb
index 977e577..7aa9e33 100644
--- a/spec/models/unit_conversion_spec.rb
+++ b/spec/models/unit_conversion_spec.rb
@@ -55,7 +55,8 @@ RSpec.describe UnitConversion do
           '-4 tbsp' => Unitwise(-4, 'tablespoon'),
           '223 g/c' => Unitwise(223, 'gram/cup'),
           '1/3 c' => Unitwise("1/3".to_r, 'cup'),
-          '-5/16 g' => Unitwise("-5/16".to_r, 'gram')
+          '-5/16 g' => Unitwise("-5/16".to_r, 'gram'),
+          '2 1/2 c' => Unitwise("5/2".to_r, 'cup')
       }
 
       data.each do |input, output|