diff --git a/spec/models/data_mapper/data_mapper_spec.rb b/spec/models/data_mapper/data_mapper_spec.rb
index <HASH>..<HASH> 100644
--- a/spec/models/data_mapper/data_mapper_spec.rb
+++ b/spec/models/data_mapper/data_mapper_spec.rb
@@ -24,6 +24,7 @@ if defined? DataMapper
         User.paginates_per(5)
         User.page(1).length.should == 5
         User.all.page(1).length.should == 5
+        User.paginates_per(nil) # reset to default
       }
     end
Restoring global configuration value.

Without setting this back to nil, this affects all other tests.