1 files changed, 10 insertions, 0 deletions
diff --git a/lib/rubygems/version.rb b/lib/rubygems/version.rb
index 62af34462d..2ced9ccdfb 100644
--- a/lib/rubygems/version.rb
+++ b/lib/rubygems/version.rb
@@ -218,6 +218,10 @@ class Gem::Version
     @hash ||= segments.hash
   end
 
+  def init_with coder # :nodoc:
+    yaml_initialize coder.tag, coder.map
+  end
+
   def inspect # :nodoc:
     "#<#{self.class} #{version.inspect}>"
   end
@@ -238,6 +242,12 @@ class Gem::Version
     initialize array[0]
   end
 
+  def yaml_initialize(tag, map)
+    @version = map['version']
+    @segments = nil
+    @hash = nil
+  end
+
   ##
   # A version is considered a prerelease if it contains a letter.