1 files changed, 1 insertions, 0 deletions
diff --git a/openttd.h b/openttd.h
index 8b97b031d..79f33febc 100644
--- a/openttd.h
+++ b/openttd.h
@@ -48,6 +48,7 @@ typedef uint32 SpriteID;    ///< The number of a sprite, without mapping bits an
 typedef uint32 PalSpriteID; ///< The number of a sprite plus all the mapping bits and colortables
 typedef uint32 CursorID;
 typedef uint16 EngineID; ///< All enginenumbers should be of this type
+typedef uint16 EngineRenewID;
 typedef uint16 UnitID;   ///< All unitnumber stuff is of this type (or anyway, should be)
 
 typedef uint32 WindowNumber;