diff --git a/src/autoreplace_base.h b/src/autoreplace_base.h
index 3c9c32d893..895449845b 100644
--- a/src/autoreplace_base.h
+++ b/src/autoreplace_base.h
@@ -15,14 +15,14 @@
 #include "engine_type.h"
 #include "group_type.h"
 
-typedef uint16_t EngineRenewID;
+using EngineRenewID = PoolID<uint16_t, struct EngineRenewIDTag, 64000, 0xFFFF>;
 
 /**
  * Memory pool for engine renew elements. DO NOT USE outside of engine.c. Is
  * placed here so the only exception to this rule, the saveload code, can use
  * it.
  */
-typedef Pool<EngineRenew, EngineRenewID, 16, 64000> EngineRenewPool;
+using EngineRenewPool = Pool<EngineRenew, EngineRenewID, 16, EngineRenewID::End().base()>;
 extern EngineRenewPool _enginerenew_pool;
 
 /**