2 files changed, 19 insertions, 7 deletions
diff --git a/activesupport/lib/active_support/gem_version.rb b/activesupport/lib/active_support/gem_version.rb
new file mode 100644
index 0000000000..83a3bf7a5d
--- /dev/null
+++ b/activesupport/lib/active_support/gem_version.rb
@@ -0,0 +1,15 @@
+module ActiveSupport
+  # Returns the version of the currently loaded ActiveSupport as a <tt>Gem::Version</tt>
+  def self.gem_version
+    Gem::Version.new VERSION::STRING
+  end
+
+  module VERSION
+    MAJOR = 4
+    MINOR = 2
+    TINY  = 0
+    PRE   = "alpha"
+
+    STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
+  end
+end
diff --git a/activesupport/lib/active_support/version.rb b/activesupport/lib/active_support/version.rb
index 38f726ea34..fe03984546 100644
--- a/activesupport/lib/active_support/version.rb
+++ b/activesupport/lib/active_support/version.rb
@@ -1,11 +1,8 @@
+require_relative 'gem_version'
+
 module ActiveSupport
-  # Returns the version of the currently loaded ActiveSupport as a Gem::Version
+  # Returns the version of the currently loaded ActiveSupport as a <tt>Gem::Version</tt>
   def self.version
-    Gem::Version.new "4.2.0.alpha"
-  end
-
-  module VERSION #:nodoc:
-    MAJOR, MINOR, TINY, PRE = ActiveSupport.version.segments
-    STRING = ActiveSupport.version.to_s
+    gem_version
   end
 end