diff --git a/src/openrct2/object/RideObject.cpp b/src/openrct2/object/RideObject.cpp
index 0eb35ff115..a2f0c2ebc5 100644
--- a/src/openrct2/object/RideObject.cpp
+++ b/src/openrct2/object/RideObject.cpp
@@ -742,7 +742,7 @@ rct_ride_entry_vehicle RideObject::ReadJsonCar(const json_t * jCar)
     rct_ride_entry_vehicle car = { 0 };
     car.rotation_frame_mask = ObjectJsonHelpers::GetInteger(jCar, "rotationFrameMask");
     car.spacing = ObjectJsonHelpers::GetInteger(jCar, "spacing");
-    car.car_friction = ObjectJsonHelpers::GetInteger(jCar, "friction");
+    car.car_mass = ObjectJsonHelpers::GetInteger(jCar, "mass");
     car.tab_height = ObjectJsonHelpers::GetInteger(jCar, "tabOffset");
     car.num_seats = ObjectJsonHelpers::GetInteger(jCar, "numSeats");
     car.sprite_width = ObjectJsonHelpers::GetInteger(jCar, "spriteWidth");
diff --git a/src/openrct2/object/RideObject.h b/src/openrct2/object/RideObject.h
index cc4b83088d..0e90c6d2ec 100644
--- a/src/openrct2/object/RideObject.h
+++ b/src/openrct2/object/RideObject.h
@@ -25,7 +25,7 @@ class RideObject final : public Object
 private:
     rct_ride_entry              _legacyType = { };
     vehicle_colour_preset_list  _presetColours = { 0 };
-    std::vector<sint8>          _peepLoadingPositions[4];
+    std::vector<sint8>          _peepLoadingPositions[MAX_VEHICLES_PER_RIDE_ENTRY];
 
 public:
     explicit RideObject(const rct_object_entry &entry) : Object(entry) { }