diff --git a/napi.h b/napi.h
index 3118dcfa..62b9e1a9 100644
--- a/napi.h
+++ b/napi.h
@@ -55,6 +55,14 @@
 
 /* NeXus HDF45 */
 #define NEXUS_VERSION   "4.3.0"                /* major.minor.patch */
+#define H5Eset_auto_vers 2
+#define H5Dopen_vers 2
+#define H5Gopen_vers 2
+#define H5Acreate_vers 2
+#define H5Dcreate_vers 2
+#define H5Gcreate_vers 2
+#define H5Aiterate_vers 2
+
 
 #define CONSTCHAR       const char