1 files changed, 2 insertions, 0 deletions
diff --git a/ttd.h b/ttd.h
index fcb5b9159..3c9e4ae2b 100644
--- a/ttd.h
+++ b/ttd.h
@@ -65,6 +65,8 @@ typedef struct NewsItem NewsItem;
 typedef struct Industry Industry;
 typedef struct DrawPixelInfo DrawPixelInfo;
 typedef uint16 VehicleID;
+typedef byte PlayerID;
+typedef byte OrderID;
 typedef uint16 StringID;
 typedef uint16 SpriteID;
 typedef uint32 PalSpriteID;