--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -179,7 +179,7 @@
 
   find_package(LuaJIT)
   if(NOT LUAJIT_FOUND)
-    find_package(Lua REQUIRED)
+    find_package(Lua ${LUA_VERSION} EXACT REQUIRED)
   endif()
   include_directories(${LUA_INCLUDE_DIR})
   link_libraries(${LUA_LIBRARIES})