diff --git a/src/H5VLnative_private.h b/src/H5VLnative_private.h
index 15c9ae94e59..8d49a8ca871 100644
--- a/src/H5VLnative_private.h
+++ b/src/H5VLnative_private.h
@@ -47,7 +47,7 @@ H5_DLLVAR H5VL_connector_t *H5VL_NATIVE_conn_g;
 H5_DLL void  *H5VL__native_attr_create(void *obj, const H5VL_loc_params_t *loc_params, const char *attr_name,
                                        hid_t type_id, hid_t space_id, hid_t acpl_id, hid_t aapl_id,
                                        hid_t dxpl_id, void **req);
-void         *H5VL__native_attr_open(void *obj, const H5VL_loc_params_t *loc_params, const char *attr_name,
+H5_DLL void  *H5VL__native_attr_open(void *obj, const H5VL_loc_params_t *loc_params, const char *attr_name,
                                      hid_t aapl_id, hid_t dxpl_id, void **req);
 H5_DLL herr_t H5VL__native_attr_read(void *attr, hid_t dtype_id, void *buf, hid_t dxpl_id, void **req);
 H5_DLL herr_t H5VL__native_attr_write(void *attr, hid_t dtype_id, const void *buf, hid_t dxpl_id, void **req);