diff --git a/panda/src/collide/collisionSolid.cxx b/panda/src/collide/collisionSolid.cxx
index 04470f3ac5..4de88d5587 100644
--- a/panda/src/collide/collisionSolid.cxx
+++ b/panda/src/collide/collisionSolid.cxx
@@ -101,6 +101,17 @@ get_bounds() const {
   return _internal_bounds;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: CollisionSolid::set_bounds
+//       Access: Protected
+//  Description: Returns the solid's bounding volume.
+////////////////////////////////////////////////////////////////////
+void CollisionSolid::
+set_bounds(const BoundingVolume &bounding_volume) {
+  MutexHolder holder(_lock);
+  ((CollisionSolid *)this)->_internal_bounds = bounding_volume.make_copy();
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: CollisionSolid::test_intersection
 //       Access: Public, Virtual
diff --git a/panda/src/collide/collisionSolid.h b/panda/src/collide/collisionSolid.h
index b8b7af0612..9b3da30836 100644
--- a/panda/src/collide/collisionSolid.h
+++ b/panda/src/collide/collisionSolid.h
@@ -76,6 +76,7 @@ PUBLISHED:
   INLINE bool get_respect_effective_normal() const;
 
   CPT(BoundingVolume) get_bounds() const;
+  void set_bounds(const BoundingVolume &bounding_volume);
   
 public:
   virtual PT(CollisionEntry)