diff --git a/xmake.lua b/xmake.lua
index e04842b..10e86f9 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -10,6 +10,7 @@ if is_mode("debug") then
     set_suffixname("d")
 end
 add_includedirs(path.join(os.scriptdir(), "include"), {public = true})
+add_includedirs(path.join(os.scriptdir(), "3rd"), {public = true})
 target("ofen")
 	add_options("boost")
 	set_kind("static")