diff --git a/src/vehicle.cpp b/src/vehicle.cpp
--- a/src/vehicle.cpp
+++ b/src/vehicle.cpp
@@ -1352,8 +1352,8 @@ Vehicle *CreateEffectVehicle(int x, int 
 
 Vehicle *CreateEffectVehicleAbove(int x, int y, int z, EffectVehicle type)
 {
-	int safe_x = clamp(x, 0, MapMaxX() * TILE_SIZE);
-	int safe_y = clamp(y, 0, MapMaxY() * TILE_SIZE);
+	int safe_x = Clamp(x, 0, MapMaxX() * TILE_SIZE);
+	int safe_y = Clamp(y, 0, MapMaxY() * TILE_SIZE);
 	return CreateEffectVehicle(x, y, GetSlopeZ(safe_x, safe_y) + z, type);
 }