diff --git a/lib/dingtalk/api.rb b/lib/dingtalk/api.rb
index 976761b..55e3625 100644
--- a/lib/dingtalk/api.rb
+++ b/lib/dingtalk/api.rb
@@ -1,3 +1,4 @@
+require "dingtalk/api/base"
 Dir["#{File.dirname(__FILE__)}/api/*.rb"].each do |path|
   require path
 end
--
libgit2 0.21.0