diff --git a/lib/omniauth/version.rb b/lib/omniauth/version.rb
index 27890f0..fbb7a36 100644
--- a/lib/omniauth/version.rb
+++ b/lib/omniauth/version.rb
@@ -1,19 +1,3 @@
 module OmniAuth
-  module Version
-    unless defined?(::OmniAuth::Version::MAJOR)
-      MAJOR = 1
-    end
-    unless defined?(::OmniAuth::Version::MINOR)
-      MINOR = 0
-    end
-    unless defined?(::OmniAuth::Version::PATCH)
-      PATCH = 0
-    end
-    unless defined?(::OmniAuth::Version::PRE)
-      PRE   = "alpha"
-    end
-    unless defined?(::OmniAuth::Version::STRING)
-      STRING = [MAJOR, MINOR, PATCH, PRE].compact.join('.')
-    end
-  end
+  VERSION = "1.0.0.pr1"
 end
diff --git a/omniauth.gemspec b/omniauth.gemspec
index 853e701..684d97b 100644
--- a/omniauth.gemspec
+++ b/omniauth.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'rspec', '~> 2.5'
   gem.add_development_dependency 'yard', '~> 0.7'
 
-  gem.version = OmniAuth::Version::STRING
+  gem.version = OmniAuth::VERSION
   gem.files = `git ls-files`.split("\n")
   gem.homepage = 'http://github.com/intridea/omniauth'
   gem.require_paths = ['lib']