diff --git a/simgear/scene/bvh/BVHStaticGeometryBuilder.hxx b/simgear/scene/bvh/BVHStaticGeometryBuilder.hxx
index 88bfd8e4..f754c542 100644
--- a/simgear/scene/bvh/BVHStaticGeometryBuilder.hxx
+++ b/simgear/scene/bvh/BVHStaticGeometryBuilder.hxx
@@ -117,6 +117,7 @@ public:
         const BVHStaticNode* tree = buildTreeRecursive(_leafRefList);
         if (!tree)
             return 0;
+        _staticData->trim();
         return new BVHStaticGeometry(tree, _staticData);
     }