diff --git a/spec/support/active_record/mysql2_setup.rb b/spec/support/active_record/mysql2_setup.rb
index 98cc964..6eba74f 100644
--- a/spec/support/active_record/mysql2_setup.rb
+++ b/spec/support/active_record/mysql2_setup.rb
@@ -8,18 +8,18 @@ module MySQL2Helper
   # require 'logger'
   # ActiveRecord::Base.logger = Logger.new(STDERR)
 
-  def config
+  def default_config
     db_config['mysql2']
   end
 
   def create_db
-    establish_connection(config.merge(:database => nil))
+    establish_connection(default_config.merge(:database => nil))
 
-    ActiveRecord::Base.connection.drop_database config['database'] rescue nil
-    ActiveRecord::Base.connection.create_database config['database']
+    ActiveRecord::Base.connection.drop_database default_config['database'] rescue nil
+    ActiveRecord::Base.connection.create_database default_config['database']
   end
 
-  def establish_connection config = config
+  def establish_connection(config = default_config)
     ActiveRecord::Base.establish_connection config
   end
 
diff --git a/spec/support/active_record/mysql_setup.rb b/spec/support/active_record/mysql_setup.rb
index e160f68..4144d97 100644
--- a/spec/support/active_record/mysql_setup.rb
+++ b/spec/support/active_record/mysql_setup.rb
@@ -7,18 +7,18 @@ module MySQLHelper
   # require 'logger'
   # ActiveRecord::Base.logger = Logger.new(STDERR)
 
-  def config
+  def default_config
     db_config['mysql']
   end
 
   def create_db
-    establish_connection(config.merge(:database => nil))
+    establish_connection(default_config.merge(:database => nil))
 
-    ActiveRecord::Base.connection.drop_database config['database'] rescue nil
-    ActiveRecord::Base.connection.create_database config['database']
+    ActiveRecord::Base.connection.drop_database default_config['database'] rescue nil
+    ActiveRecord::Base.connection.create_database default_config['database']
   end
 
-  def establish_connection config = config
+  def establish_connection(config = default_config)
     ActiveRecord::Base.establish_connection config
   end
 
diff --git a/spec/support/active_record/postgresql_setup.rb b/spec/support/active_record/postgresql_setup.rb
index 91b0ab0..6283119 100644
--- a/spec/support/active_record/postgresql_setup.rb
+++ b/spec/support/active_record/postgresql_setup.rb
@@ -6,22 +6,22 @@ module PostgreSQLHelper
 
   # ActiveRecord::Base.logger = Logger.new(STDERR)
 
-  def config
+  def default_config
     db_config['postgres']
   end
 
   def create_db
-    @encoding = config['encoding'] || ENV['CHARSET'] || 'utf8'
+    @encoding = default_config['encoding'] || ENV['CHARSET'] || 'utf8'
     begin
-      establish_connection(config.merge('database' => 'postgres', 'schema_search_path' => 'public'))
-      ActiveRecord::Base.connection.create_database(config['database'], config.merge('encoding' => @encoding))
+      establish_connection(default_config.merge('database' => 'postgres', 'schema_search_path' => 'public'))
+      ActiveRecord::Base.connection.create_database(default_config['database'], default_config.merge('encoding' => @encoding))
     rescue Exception => e
       $stderr.puts e, *(e.backtrace)
-      $stderr.puts "Couldn't create database for #{config.inspect}"
+      $stderr.puts "Couldn't create database for #{default_config.inspect}"
     end
   end
 
-  def establish_connection config = config
+  def establish_connection(config = default_config)
     ActiveRecord::Base.establish_connection(config)
   end
 
diff --git a/spec/support/active_record/sqlite3_setup.rb b/spec/support/active_record/sqlite3_setup.rb
index b616d51..0ba264a 100644
--- a/spec/support/active_record/sqlite3_setup.rb
+++ b/spec/support/active_record/sqlite3_setup.rb
@@ -6,21 +6,21 @@ module SQLite3Helper
 
   # ActiveRecord::Base.logger = Logger.new(STDERR)
 
-  def config
+  def default_config
     db_config['sqlite3']
   end
 
   def create_db
-    @encoding = config['encoding'] || ENV['CHARSET'] || 'utf8'
+    @encoding = default_config['encoding'] || ENV['CHARSET'] || 'utf8'
     begin
-      establish_connection(config.merge('database' => 'sqlite3', 'schema_search_path' => 'public'))
+      establish_connection(default_config.merge('database' => 'sqlite3', 'schema_search_path' => 'public'))
     rescue Exception => e
       $stderr.puts e, *(e.backtrace)
-      $stderr.puts "Couldn't create database for #{config.inspect}"
+      $stderr.puts "Couldn't create database for #{default_config.inspect}"
     end
   end
 
-  def establish_connection config = config
+  def establish_connection(config = default_config)
     ActiveRecord::Base.establish_connection(config)
   end
 
diff --git a/spec/support/data_mapper/sqlite3_setup.rb b/spec/support/data_mapper/sqlite3_setup.rb
index 0053f46..a133210 100644
--- a/spec/support/data_mapper/sqlite3_setup.rb
+++ b/spec/support/data_mapper/sqlite3_setup.rb
@@ -5,21 +5,21 @@ module DataMapperSQLite3Helper
 
   puts "DataMapper #{DataMapper::VERSION}, sqlite3"
 
-  def config
+  def default_config
     db_config['sqlite3']
   end
 
   def create_db
-    @encoding = config['encoding'] || ENV['CHARSET'] || 'utf8'
+    @encoding = default_config['encoding'] || ENV['CHARSET'] || 'utf8'
     begin
-      establish_connection(config.merge('database' => 'sqlite3', 'schema_search_path' => 'public'))
+      establish_connection(default_config.merge('database' => 'sqlite3', 'schema_search_path' => 'public'))
     rescue Exception => e
       $stderr.puts e, *(e.backtrace)
-      $stderr.puts "Couldn't create database for #{config.inspect}"
+      $stderr.puts "Couldn't create database for #{default_config.inspect}"
     end
   end
 
-  def establish_connection(config = config)
+  def establish_connection(config = default_config)
     DataMapper.setup(:default, config)
   end