diff --git a/lib/dingtalk/client.rb b/lib/dingtalk/client.rb
index 4d613c2..e3b08be 100644
--- a/lib/dingtalk/client.rb
+++ b/lib/dingtalk/client.rb
@@ -64,7 +64,7 @@ module Dingtalk
       Api::User.new(@corp)
     end
 
-    def Attendance
+    def attendance
       Api::Attendance.new(@corp)
     end
 
--
libgit2 0.21.0