diff --git a/src/openrct2/world/LargeScenery.h b/src/openrct2/world/LargeScenery.h
index 71998fdbb4..54f8ea9409 100644
--- a/src/openrct2/world/LargeScenery.h
+++ b/src/openrct2/world/LargeScenery.h
@@ -14,6 +14,8 @@
  *****************************************************************************/
 #pragma endregion
 
+#pragma once
+
 #include "../common.h"
 #include "map.h"
 
diff --git a/src/openrct2/world/SmallScenery.h b/src/openrct2/world/SmallScenery.h
index 5f5652ab54..2a757a7abe 100644
--- a/src/openrct2/world/SmallScenery.h
+++ b/src/openrct2/world/SmallScenery.h
@@ -14,6 +14,8 @@
  *****************************************************************************/
 #pragma endregion
 
+#pragma once
+
 #include "../common.h"
 #include "map.h"
 #include "scenery.h"
diff --git a/src/openrct2/world/Wall.h b/src/openrct2/world/Wall.h
index fcf0cc2bb9..7c931ff54e 100644
--- a/src/openrct2/world/Wall.h
+++ b/src/openrct2/world/Wall.h
@@ -14,6 +14,8 @@
  *****************************************************************************/
 #pragma endregion
 
+#pragma once
+
 #include "../common.h"
 #include "map.h"