diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index e00ba16d7..177d2158a 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -30,6 +30,10 @@
     mocks.verify_partial_doubles = true
   end
 
+  config.define_derived_metadata do |meta|
+    meta[:aggregate_failures] = true unless meta.key?(:aggregate_failures)
+  end
+
   config.include FixtureHelpers
 
   def app