diff --git a/lib/rb/Rakefile b/lib/rb/Rakefile
index 6489bdf..1a9467a 100644
--- a/lib/rb/Rakefile
+++ b/lib/rb/Rakefile
@@ -82,6 +82,7 @@
     p.summary = "Ruby libraries for Thrift (a language-agnostic RPC system)"
     p.url = "http://incubator.apache.org/thrift/"
     p.include_rakefile = true
+    p.version = "0.1.0"
   end
 
   task :install => [:check_site_lib]