diff --git a/drivers/bus/isapnp/isapnp.c b/drivers/bus/isapnp/isapnp.c
index 877d69bf5a5..0ff17876e75 100644
--- a/drivers/bus/isapnp/isapnp.c
+++ b/drivers/bus/isapnp/isapnp.c
@@ -1246,7 +1246,7 @@ IsaPnpCreateReadPortDO(
                             sizeof(ISAPNP_PDO_EXTENSION),
                             NULL,
                             FILE_DEVICE_CONTROLLER,
-                            FILE_DEVICE_SECURE_OPEN,
+                            FILE_DEVICE_SECURE_OPEN | FILE_AUTOGENERATED_DEVICE_NAME,
                             FALSE,
                             &FdoExt->ReadPortPdo);
     if (!NT_SUCCESS(Status))