diff --git a/libEDSsharp/CanOpenXDD.cs b/libEDSsharp/CanOpenXDD.cs
index bd8398b9..165036ca 100644
--- a/libEDSsharp/CanOpenXDD.cs
+++ b/libEDSsharp/CanOpenXDD.cs
@@ -517,10 +517,8 @@ public ISO15745ProfileContainer convert(EDSsharp eds)
 
                         AppLayer.CANopenObjectList.CANopenObject[count].CANopenSubObject[subcount].edseditor_extension_notifyonchange = subod.prop.CO_flagsPDO;
 
-                        if (od.objecttype == ObjectType.ARRAY && count != 0)
-                            bytes = BitConverter.GetBytes((UInt16)od.datatype);
-                        else
-                            bytes = BitConverter.GetBytes((UInt16)subod.datatype);
+                        bytes = (subod.datatype == DataType.UNKNOWN && od.parent != null) ? BitConverter.GetBytes((UInt16)od.parent.datatype) : BitConverter.GetBytes((UInt16)subod.datatype);
+                      
                         Array.Reverse(bytes);
 
                         // hack - special handling for rrw / rww access type