diff --git a/lib/bson.rb b/lib/bson.rb
index 41409d8..5d93351 100644
--- a/lib/bson.rb
+++ b/lib/bson.rb
@@ -16,6 +16,8 @@
 # limitations under the License.
 # ++
 
+$:.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
+
 MINIMUM_BSON_EXT_VERSION = "1.5.1"
 
 module BSON
diff --git a/lib/mongo.rb b/lib/mongo.rb
index a3191ff..1e386a5 100644
--- a/lib/mongo.rb
+++ b/lib/mongo.rb
@@ -16,6 +16,8 @@
 # limitations under the License.
 # ++
 
+$:.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
+
 require 'mongo/version'
 
 module Mongo