diff --git a/python/mujoco/__init__.py b/python/mujoco/__init__.py
index de578935..d800c0b0 100644
--- a/python/mujoco/__init__.py
+++ b/python/mujoco/__init__.py
@@ -105,7 +105,7 @@ def to_zip(spec: _specs.MjSpec, file: Union[str, IO[bytes]]) -> None:
     file = open(file, 'wb')
   with zipfile.ZipFile(file, 'w') as zip_file:
     for filename, contents in files_to_zip.items():
-      zip_info = zipfile.ZipInfo(os.path.join(spec.modelname, filename))
+      zip_info = zipfile.ZipInfo(os.path.join(spec.meshdir, filename))
       zip_file.writestr(zip_info, contents)
 
 
diff --git a/python/mujoco/specs_wrapper.cc b/python/mujoco/specs_wrapper.cc
index 18ffd3b5..3ca6d3c5 100644
--- a/python/mujoco/specs_wrapper.cc
+++ b/python/mujoco/specs_wrapper.cc
@@ -98,8 +98,7 @@ raw::MjModel* MjSpec::Compile() {
   mjVFS vfs;
   mj_defaultVFS(&vfs);
   for (const auto& asset : assets) {
-    std::string buffer_name =
-        _impl::StripPath(py::cast<std::string>(asset.first).c_str());
+    std::string buffer_name = py::cast<std::string>(asset.first).c_str();
     std::string buffer = py::cast<std::string>(asset.second);
     const int vfs_error = InterceptMjErrors(mj_addBufferVFS)(
         &vfs, buffer_name.c_str(), buffer.c_str(), buffer.size());