diff --git a/src/road_cmd.cpp b/src/road_cmd.cpp
--- a/src/road_cmd.cpp
+++ b/src/road_cmd.cpp
@@ -865,7 +865,7 @@ do_clear:;
 				if (HasPowerOnRoad(rt, existing_rt)) {
 					rt = existing_rt;
 				} else if (HasPowerOnRoad(existing_rt, rt)) {
-					CommandCost ret = Command<CMD_CONVERT_ROAD>::Do(flags, tile, tile, rt);
+					ret = Command<CMD_CONVERT_ROAD>::Do(flags, tile, tile, rt);
 					if (ret.Failed()) return ret;
 					cost.AddCost(ret);
 				} else {
@@ -1715,7 +1715,7 @@ static void DrawTile_Road(TileInfo *ti)
 			/* Draw rail/PBS overlay */
 			bool draw_pbs = _game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasCrossingReservation(ti->tile);
 			if (rti->UsesOverlay()) {
-				PaletteID pal = draw_pbs ? PALETTE_CRASH : PAL_NONE;
+				pal = draw_pbs ? PALETTE_CRASH : PAL_NONE;
 				SpriteID rail = GetCustomRailSprite(rti, ti->tile, RTSG_CROSSING) + axis;
 				DrawGroundSprite(rail, pal);
 
@@ -1757,7 +1757,7 @@ static void DrawTile_Road(TileInfo *ti)
 				}
 			} else if (draw_pbs || tram_rti != nullptr || road_rti->UsesOverlay()) {
 				/* Add another rail overlay, unless there is only the base road sprite. */
-				PaletteID pal = draw_pbs ? PALETTE_CRASH : PAL_NONE;
+				pal = draw_pbs ? PALETTE_CRASH : PAL_NONE;
 				SpriteID rail = GetCrossingRoadAxis(ti->tile) == AXIS_Y ? GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.single_x : GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.single_y;
 				DrawGroundSprite(rail, pal);
 			}