diff --git a/lib/versioncake/configuration.rb b/lib/versioncake/configuration.rb
index 87aa938..91b7a6a 100644
--- a/lib/versioncake/configuration.rb
+++ b/lib/versioncake/configuration.rb
@@ -1,15 +1,15 @@
 require 'active_support/core_ext/module/attribute_accessors.rb'
+require 'active_support/core_ext/array/wrap.rb'
 
 module VersionCake
   module Configuration
 
     SUPPORTED_VERSIONS_DEFAULT = (1..10)
 
-    mattr_accessor :supported_version_numbers
-    self.supported_version_numbers = SUPPORTED_VERSIONS_DEFAULT
+    mattr_reader :supported_version_numbers
 
     mattr_accessor :extraction_strategies
-    self.extraction_strategies = [VersionCake::QueryParameterStrategy.new]
+    self.extraction_strategies = []
 
     mattr_accessor :default_version
     self.default_version = nil
@@ -42,5 +42,7 @@ def self.latest_version
       supported_version_numbers.first
     end
 
+    self.extraction_strategy       = :query_parameter
+    self.supported_version_numbers = SUPPORTED_VERSIONS_DEFAULT
   end
 end
\ No newline at end of file
diff --git a/lib/versioncake/strategies/extraction_strategy.rb b/lib/versioncake/strategies/extraction_strategy.rb
index 059bf47..32b1eaa 100644
--- a/lib/versioncake/strategies/extraction_strategy.rb
+++ b/lib/versioncake/strategies/extraction_strategy.rb
@@ -1,4 +1,5 @@
 require 'active_support/core_ext/class/attribute_accessors.rb'
+require 'active_support/core_ext/string/inflections.rb'
 
 module VersionCake
   class ExtractionStrategy