diff --git a/meta/classes/image-vmdk.bbclass b/meta/classes/image-vmdk.bbclass
index d3e5481..3e63006 100644
--- a/meta/classes/image-vmdk.bbclass
+++ b/meta/classes/image-vmdk.bbclass
@@ -1,4 +1,5 @@
 
+NOISO = "1"
 SYSLINUX_PROMPT = "0"
 SYSLINUX_TIMEOUT = "1"
 SYSLINUX_LABELS = "boot"