diff --git a/spec/lib/puppet_spec/database.rb b/spec/lib/puppet_spec/database.rb
index 86cb17702..e4127ba93 100644
--- a/spec/lib/puppet_spec/database.rb
+++ b/spec/lib/puppet_spec/database.rb
@@ -1,30 +1,32 @@
 # This just makes some nice things available at global scope, and for setup of
 # tests to use a real fake database, rather than a fake stubs-that-don't-work
 # version of the same.  Fun times.
 def sqlite?
   if $sqlite.nil?
     begin
       require 'sqlite3'
       $sqlite = true
     rescue LoadError
       $sqlite = false
     end
   end
   $sqlite
 end
 
 def can_use_scratch_database?
   sqlite? and Puppet.features.rails?
 end
 
 
 # This is expected to be called in your `before :each` block, and will get you
 # ready to roll with a serious database and all.  Cleanup is handled
 # automatically for you.  Nothing to do there.
 def setup_scratch_database
-  dir = PuppetSpec::Files.tmpdir('puppet-sqlite')
-  Puppet[:dbadapter]  = 'sqlite3'
-  Puppet[:dblocation] = (dir + 'storeconfigs.sqlite').to_s
-  Puppet[:railslog]   = (dir + 'storeconfigs.log').to_s
+  Puppet::Rails.stubs(:database_arguments).returns(
+    :adapter => 'sqlite3',
+    :log_level => Puppet[:rails_loglevel],
+    :database => ':memory:'
+  )
+  Puppet[:railslog] = PuppetSpec::Files.tmpfile('storeconfigs.log')
   Puppet::Rails.init
 end