diff --git a/mongo-ruby-driver.gemspec b/mongo-ruby-driver.gemspec
index f242bf4..d1bf4fa 100644
--- a/mongo-ruby-driver.gemspec
+++ b/mongo-ruby-driver.gemspec
@@ -83,7 +83,10 @@ TEST_FILES = ['test/mongo-qa/_common.rb',
 
 Gem::Specification.new do |s|
   s.name = 'mongo'
+
+  # be sure to change this constant in lib/mongo.rb as well
   s.version = '0.14.1'
+
   s.platform = Gem::Platform::RUBY
   s.summary = 'Ruby driver for the 10gen Mongo DB'
   s.description = 'A Ruby driver for the 10gen Mongo DB. For more information about Mongo, see http://www.mongodb.org.'