diff --git a/spec/unit/hanami/validator_spec.rb b/spec/unit/hanami/validator_spec.rb
index c83265c..5a4f833 100644
--- a/spec/unit/hanami/validator_spec.rb
+++ b/spec/unit/hanami/validator_spec.rb
@@ -36,11 +36,7 @@
 
       expect(result.errors.to_h).to eq(number: ["must be an integer"])
 
-      errors = []
-      result.errors.each do |error|
-        errors << error.text
-      end
-
+      errors = result.errors.map(&:text)
       expect(errors).to match_array(["must be an integer"])
     end
   end