diff --git a/CMakeLists.txt b/CMakeLists.txt
index 97a3fe1a..c2a5b924 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -438,7 +438,9 @@ if (NOT CROSSTOOLS)
 		set(_lua_src_hdr "${_lua_src_dir}/lua.hpp" "${_lua_src_dir}/lua.h" "${_lua_src_dir}/luaconf.h" "${_lua_src_dir}/lualib.h")
 		pip_module(lua "" "PIP Lua support" "${_lua_src_dir};${_lua_bri_dir}" "${_lua_src_dir}" " (internal)")
 		target_include_directories(pip_lua PUBLIC "${_lua_src_dir}" "${_lua_bri_dir}")
-		target_compile_definitions(pip_lua PRIVATE LUA_BUILD_AS_DLL LUA_CORE)
+		if (WIN32)
+			target_compile_definitions(pip_lua PRIVATE LUA_BUILD_AS_DLL LUA_CORE)
+		endif()
 		list(APPEND HDR_DIRS "${_lua_bri_dir}/LuaBridge")
 		list(APPEND HDRS ${_lua_src_hdr})