From 3336f13a63c38358851881a074d1e41ffb7f9b0c Mon Sep 17 00:00:00 2001
From: Peter Nelson <peter1138@openttd.org>
Date: Tue, 11 Mar 2025 17:55:33 +0000
Subject: [PATCH] Fix #13795: size_t mayn't be the same size as uint64_t.
 (#13796)

---
 src/engine_base.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/engine_base.h b/src/engine_base.h
index 2c8e16e79b..ab7862e9f5 100644
--- a/src/engine_base.h
+++ b/src/engine_base.h
@@ -213,7 +213,7 @@ struct EngineIDMapping {
 
 /** Projection to get a unique key of an EngineIDMapping, used for sorting in EngineOverrideManager. */
 struct EngineIDMappingKeyProjection {
-	inline size_t operator()(const EngineIDMapping &eid) const { return eid.Key(); }
+	inline uint64_t operator()(const EngineIDMapping &eid) const { return eid.Key(); }
 };
 
 /**