diff --git a/src/rail_cmd.cpp b/src/rail_cmd.cpp
--- a/src/rail_cmd.cpp
+++ b/src/rail_cmd.cpp
@@ -1809,7 +1809,7 @@ static void DrawTrackDetails(const TileI
 {
 	/* Base sprite for track fences.
 	 * Note: Halftile slopes only have fences on the upper part. */
-	SpriteID base_image = GetCustomRailSprite(rti, ti->tile, RTSG_FENCES, IsHalftileSlope(ti->tileh));
+	SpriteID base_image = GetCustomRailSprite(rti, ti->tile, RTSG_FENCES, IsHalftileSlope(ti->tileh) ? TC_UPPER_HALFTILE : TC_NORMAL);
 	if (base_image == 0) base_image = SPR_TRACK_FENCE_FLAT_X;
 
 	switch (GetRailGroundType(ti->tile)) {
@@ -1968,8 +1968,8 @@ static void DrawTrackBitsOverlay(TileInf
 
 	if (IsValidCorner(halftile_corner)) {
 		DrawFoundation(ti, HalftileFoundation(halftile_corner));
-		overlay = GetCustomRailSprite(rti, ti->tile, RTSG_OVERLAY, true);
-		ground = GetCustomRailSprite(rti, ti->tile, RTSG_GROUND, true);
+		overlay = GetCustomRailSprite(rti, ti->tile, RTSG_OVERLAY, TC_UPPER_HALFTILE);
+		ground = GetCustomRailSprite(rti, ti->tile, RTSG_GROUND, TC_UPPER_HALFTILE);
 
 		/* Draw higher halftile-overlay: Use the sloped sprites with three corners raised. They probably best fit the lightning. */
 		Slope fake_slope = SlopeWithThreeCornersRaised(OppositeCorner(halftile_corner));