diff --git a/src/openrct2/rct1.h b/src/openrct2/rct1.h
index cad0454ebb..19beb30001 100644
--- a/src/openrct2/rct1.h
+++ b/src/openrct2/rct1.h
@@ -328,8 +328,6 @@ typedef struct rct1_vehicle {
 	uint8 mini_golf_flags;			// 0xD5
 	uint8 ride_subtype;				// 0xD6
 	uint8 colours_extended;			// 0xD7
-	uint8 seat_rotation;			// 0xD8
-	uint8 target_seat_rotation;		// 0xD9
 } rct1_vehicle;
 
 typedef struct rct1_peep {
diff --git a/src/openrct2/rct1/S4Importer.cpp b/src/openrct2/rct1/S4Importer.cpp
index 373c501b71..ea1afeabfd 100644
--- a/src/openrct2/rct1/S4Importer.cpp
+++ b/src/openrct2/rct1/S4Importer.cpp
@@ -893,8 +893,10 @@ private:
         dst->scream_sound_id = 255;
         dst->vehicle_sprite_type = 0;
         dst->bank_rotation = src->bank_rotation;
-        dst->target_seat_rotation = src->target_seat_rotation;
-        dst->seat_rotation = src->seat_rotation;
+
+        // Seat rotation was not in RCT1
+        dst->target_seat_rotation = 4;
+        dst->seat_rotation = 4;
 
         // Vehicle links (indexes converted later)
         dst->prev_vehicle_on_ride = src->prev_vehicle_on_ride;