--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -202,7 +202,7 @@
 #lua discovery
 if(LUA_SYSTEM)
     if(NOT LUA_LIBRARY OR NOT LUA_INCLUDE_DIR)
-        find_package(Lua)
+        find_package(Lua ${LUA_VERSION} EXACT REQUIRED)
     endif()
 
     if(LUA_LIBRARY AND LUA_INCLUDE_DIR)