diff --git a/src/openrct2/ride/VehicleColour.h b/src/openrct2/ride/VehicleColour.h
index 308c7e2d3d..c1fdc67df5 100644
--- a/src/openrct2/ride/VehicleColour.h
+++ b/src/openrct2/ride/VehicleColour.h
@@ -7,8 +7,7 @@
  * OpenRCT2 is licensed under the GNU General Public License version 3.
  *****************************************************************************/
 
-#ifndef VEHICLECOLOUR_H_
-#define VEHICLECOLOUR_H_
+#pragma once
 
 #include "../common.h"
 
@@ -24,5 +23,3 @@ struct VehicleColour
     uint8_t Trim;
     uint8_t Ternary;
 };
-
-#endif // VEHICLECOLOUR_H_
diff --git a/src/openrct2/ride/VehicleEntry.h b/src/openrct2/ride/VehicleEntry.h
index e58657ff4e..d354729f5f 100644
--- a/src/openrct2/ride/VehicleEntry.h
+++ b/src/openrct2/ride/VehicleEntry.h
@@ -7,8 +7,7 @@
  * OpenRCT2 is licensed under the GNU General Public License version 3.
  *****************************************************************************/
 
-#ifndef VEHICLEENTRY_H_
-#define VEHICLEENTRY_H_
+#pragma once
 
 #include "../audio/AudioMixer.h"
 #include "../common.h"
@@ -88,5 +87,3 @@ static_assert(sizeof(rct_ride_entry_vehicle) % 4 == 0, "Invalid struct size");
 #else
 static_assert(sizeof(rct_ride_entry_vehicle) % 8 == 0, "Invalid struct size");
 #endif
-
-#endif // VEHICLEENTRY_H_
diff --git a/src/openrct2/world/EntityList.h b/src/openrct2/world/EntityList.h
index d7e4de5f1a..90e7aab116 100644
--- a/src/openrct2/world/EntityList.h
+++ b/src/openrct2/world/EntityList.h
@@ -7,8 +7,7 @@
  * OpenRCT2 is licensed under the GNU General Public License version 3.
  *****************************************************************************/
 
-#ifndef ENTITYLIST_H_
-#define ENTITYLIST_H_
+#pragma once
 
 #include "../common.h"
 #include "../rct12/RCT12.h"
@@ -237,5 +236,3 @@ public:
         return EntityListIterator_t(std::cend(vec), std::cend(vec));
     }
 };
-
-#endif // ENTITYLIST_H_