diff --git a/packages/q/quickjs-ng/xmake.lua b/packages/q/quickjs-ng/xmake.lua
index ecf1d70c26f..c58f12c017a 100644
--- a/packages/q/quickjs-ng/xmake.lua
+++ b/packages/q/quickjs-ng/xmake.lua
@@ -34,7 +34,7 @@ package("quickjs-ng")
         io.replace("CMakeLists.txt", "xcheck_add_c_compiler_flag(-Werror)", "", {plain = true})
         io.replace("CMakeLists.txt", "if(NOT WIN32 AND NOT EMSCRIPTEN)", "if(0)", {plain = true})
 
-        local configs = {}
+        local configs = {"-DBUILD_QJS_LIBC=ON"}
         table.insert(configs, "-DCMAKE_BUILD_TYPE=" .. (package:is_debug() and "Debug" or "Release"))
         table.insert(configs, "-DBUILD_SHARED_LIBS=" .. (package:config("shared") and "ON" or "OFF"))
         table.insert(configs, "-DCONFIG_ASAN=" .. (package:config("asan") and "ON" or "OFF"))