diff --git a/Rakefile b/Rakefile
index f5a9b14..edecf8d 100644
--- a/Rakefile
+++ b/Rakefile
@@ -36,5 +36,7 @@ Spec::Rake::SpecTask.new('spec') do |t|
   t.spec_opts << '--options' << 'spec/spec.opts'
 end
 
-Rake::ExtensionTask.new("mysql2", JEWELER.gemspec)
+Rake::ExtensionTask.new("mysql2", JEWELER.gemspec) do |ext|
+  ext.lib_dir = File.join 'lib', 'mysql2'
+end
 Rake::Task[:spec].prerequisites << :compile