diff --git a/CMakeLists.txt b/CMakeLists.txt
index e671f524..731993ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -102,6 +102,7 @@ else()
     find_package(PkgConfig)
     pkg_check_modules(LUAJIT REQUIRED luajit)
     set(LUA_LIBRARIES ${LUAJIT_LIBRARIES})
+    set(LUA_INCLUDE_DIR ${LUAJIT_INCLUDE_DIR})
     find_package(PNG REQUIRED)
     set(PNGLIB PNG::PNG)
     set(VORBISLIB vorbis vorbisfile)