diff --git a/src/openrct2/world/TileElementsView.h b/src/openrct2/world/TileElementsView.h
index c4912b8564..a8bef7a87a 100644
--- a/src/openrct2/world/TileElementsView.h
+++ b/src/openrct2/world/TileElementsView.h
@@ -7,6 +7,8 @@
  * OpenRCT2 is licensed under the GNU General Public License version 3.
  *****************************************************************************/
 
+#pragma once
+
 #include "Location.hpp"
 #include "Map.h"
 #include "TileElement.h"