diff --git a/src/user/user_mesh.cc b/src/user/user_mesh.cc
index 5877d108..6a76c0cd 100644
--- a/src/user/user_mesh.cc
+++ b/src/user/user_mesh.cc
@@ -573,7 +573,7 @@ void mjCMesh::Compile(const mjVFS* vfs) {
   if (tree_.bvh.empty()) {
     face_aabb_.assign(6*nface_, 0);
     for (int i=0; i<nface_; i++) {
-      tree_.AddBundingVolume(GetBoundingVolume(i));
+      tree_.AddBoundingVolume(GetBoundingVolume(i));
     }
     tree_.CreateBVH();
   }
diff --git a/src/user/user_objects.cc b/src/user/user_objects.cc
index 5ca76c16..44174121 100644
--- a/src/user/user_objects.cc
+++ b/src/user/user_objects.cc
@@ -282,7 +282,7 @@ void mjCBoundingVolumeHierarchy::Set(mjtNum ipos_element[3], mjtNum iquat_elemen
 
 
 // add geom to bvh
-void mjCBoundingVolumeHierarchy::AddBundingVolume(const mjCBoundingVolume& bv) {
+void mjCBoundingVolumeHierarchy::AddBoundingVolume(const mjCBoundingVolume& bv) {
   bvh_.push_back(bv);
 }
 
@@ -987,7 +987,7 @@ void mjCBody::Compile(void) {
   if (!geoms.empty()) {
     tree.Set(ipos, iquat);
     for (int i=0; i<geoms.size(); i++) {
-      tree.AddBundingVolume(geoms[i]->GetBoundingVolume());
+      tree.AddBoundingVolume(geoms[i]->GetBoundingVolume());
     }
     tree.CreateBVH();
   }
diff --git a/src/user/user_objects.h b/src/user/user_objects.h
index d8d012a4..21dc7cbb 100644
--- a/src/user/user_objects.h
+++ b/src/user/user_objects.h
@@ -152,7 +152,7 @@ class mjCBoundingVolumeHierarchy {
   // make bounding volume hierarchy
   void CreateBVH();
   void Set(mjtNum ipos_element[3], mjtNum iquat_element[4]);
-  void AddBundingVolume(const mjCBoundingVolume& bv);
+  void AddBoundingVolume(const mjCBoundingVolume& bv);
 
  private:
   int MakeBVH(std::vector<mjCBoundingVolume>& elements, int lev = 0);