diff --git a/lib/hkStubs/CMakeLists.txt b/lib/hkStubs/CMakeLists.txt
index bf9397ba..fe6295dc 100644
--- a/lib/hkStubs/CMakeLists.txt
+++ b/lib/hkStubs/CMakeLists.txt
@@ -109,6 +109,7 @@ add_library(hkStubs OBJECT
   Havok/Physics2012/Collide/Shape/Compound/Tree/hkpBvTreeShape.h
   Havok/Physics2012/Collide/Shape/Compound/Tree/Mopp/hkpMoppBvTreeShape.h
   Havok/Physics2012/Collide/Shape/Convex/hkpConvexShape.h
+  Havok/Physics2012/Collide/Shape/Convex/Box/hkpBoxShape.h
   Havok/Physics2012/Collide/Shape/Convex/Capsule/hkpCapsuleShape.h
   Havok/Physics2012/Collide/Shape/HeightField/hkpSphereRepShape.h
   Havok/Physics2012/Collide/Shape/Query/hkpRayShapeCollectionFilter.h
diff --git a/lib/hkStubs/Havok/Physics2012/Collide/Shape/Convex/Box/hkpBoxShape.h b/lib/hkStubs/Havok/Physics2012/Collide/Shape/Convex/Box/hkpBoxShape.h
new file mode 100644
index 00000000..6f1bc5e6
--- /dev/null
+++ b/lib/hkStubs/Havok/Physics2012/Collide/Shape/Convex/Box/hkpBoxShape.h
@@ -0,0 +1,44 @@
+#pragma once
+
+#include <Havok/Physics2012/Collide/Shape/Convex/hkpConvexShape.h>
+
+/// A simple box shape centered around the origin.
+class hkpBoxShape : public hkpConvexShape {
+public:
+    HK_DECLARE_CLASS_ALLOCATOR(hkpBoxShape)
+    HK_DECLARE_REFLECTION()
+    HKCD_DECLARE_SHAPE_TYPE(hkcdShapeType::BOX)
+
+public:
+    hkpBoxShape() {}
+    explicit hkpBoxShape(const hkVector4& halfExtents, hkReal radius = hkConvexShapeDefaultRadius);
+    explicit hkpBoxShape(hkFinishLoadedObjectFlag flag);
+
+    ~hkpBoxShape() override;
+
+    void getSupportingVertex(hkVector4Parameter direction,
+                             hkcdVertex& supportingVertexOut) const override;
+    void convertVertexIdsToVertices(const hkpVertexId* ids, int numIds,
+                                    hkcdVertex* verticesOut) const override;
+    void getCentre(hkVector4& centreOut) const override;
+    int getNumCollisionSpheres() const override;
+    const hkSphere* getCollisionSpheres(hkSphere* sphereBuffer) const override;
+    void getAabb(const hkTransform& localToWorld, hkReal tolerance, hkAabb& out) const override;
+    hkBool castRay(const hkpShapeRayCastInput& input,
+                   hkpShapeRayCastOutput& results) const override;
+    void getFirstVertex(hkVector4& v) const override;
+
+    inline const hkVector4& getHalfExtents() const;
+    void setHalfExtents(const hkVector4& halfExtents);
+
+protected:
+    hkVector4 m_halfExtents;
+};
+
+inline int hkpBoxShape::getNumCollisionSpheres() const {
+    return 0;
+}
+
+inline const hkVector4& hkpBoxShape::getHalfExtents() const {
+    return m_halfExtents;
+}
diff --git a/lib/hkStubs/Havok/Physics2012/Collide/Shape/Convex/hkpConvexShape.h b/lib/hkStubs/Havok/Physics2012/Collide/Shape/Convex/hkpConvexShape.h
index a9dfa55a..c53c92c3 100644
--- a/lib/hkStubs/Havok/Physics2012/Collide/Shape/Convex/hkpConvexShape.h
+++ b/lib/hkStubs/Havok/Physics2012/Collide/Shape/Convex/hkpConvexShape.h
@@ -4,6 +4,8 @@
 #include <Havok/Physics2012/Collide/Shape/HeightField/hkpSphereRepShape.h>
 #include <Havok/Physics2012/Collide/Shape/hkpShape.h>
 
+extern hkReal hkConvexShapeDefaultRadius;
+
 class hkpConvexShape : public hkpSphereRepShape {
 public:
     HK_DECLARE_CLASS_ALLOCATOR(hkpConvexShape)