diff --git a/src/ride/track.h b/src/ride/track.h
index 187454835b..f1d300e97a 100644
--- a/src/ride/track.h
+++ b/src/ride/track.h
@@ -28,7 +28,7 @@ typedef struct rct_trackdefinition {
 	uint8 vangle_start;
 	uint8 bank_end;
 	uint8 bank_start;
-	uint8 special;
+	sint8 preview_z_offset;
 	uint8 pad[2];
 } rct_trackdefinition;
 assert_struct_size(rct_trackdefinition, 8);
diff --git a/src/windows/ride_construction.c b/src/windows/ride_construction.c
index 5981507f86..54688d4aa4 100644
--- a/src/windows/ride_construction.c
+++ b/src/windows/ride_construction.c
@@ -2252,11 +2252,11 @@ static void window_ride_construction_draw_track_piece(
 	y = 4112 + (y / 2);
 	z = 1024 + z;
 
-	short bx = ride_type_has_flag(ride->type, RIDE_TYPE_FLAG_FLAT_RIDE) ?
-		FlatRideTrackDefinitions[trackType].special :
-		TrackDefinitions[trackType].special;
+	short previewZOffset = ride_type_has_flag(ride->type, RIDE_TYPE_FLAG_FLAT_RIDE) ?
+		FlatRideTrackDefinitions[trackType].preview_z_offset :
+		TrackDefinitions[trackType].preview_z_offset;
+	z -= previewZOffset;
 
-	z -= bx;
 	int start_x = x;
 	switch (get_current_rotation()) {
 	case 0: