diff --git a/luprex/cpp/drv/driver.cpp b/luprex/cpp/drv/driver.cpp
index 8185335e..2d0efb94 100644
--- a/luprex/cpp/drv/driver.cpp
+++ b/luprex/cpp/drv/driver.cpp
@@ -190,7 +190,7 @@ class Driver {
 
     void inject_lua_source() {
         drvutil::ostringstream oss;
-        std::string err = drvutil::package_lua_source(".", &oss);
+        std::string err = drvutil::package_lua_source(luprexroot, &oss);
         if_error_print_and_exit(err);
         std::string_view ossv = oss.view();
         engw.play_access(&engw, AccessKind::INVOKE_LUA_SOURCE, 0, ossv.size(), ossv.data(), nullptr, nullptr);