diff --git a/src/vmm_mad/kvm/vmm_kvm.conf b/src/vmm_mad/kvm/vmm_kvm.conf
index 880cea7fac..6ce08f5867 100644
--- a/src/vmm_mad/kvm/vmm_kvm.conf
+++ b/src/vmm_mad/kvm/vmm_kvm.conf
@@ -3,6 +3,9 @@
 # Valid atributes are:
 #  - os [kernel,initrd,boot,root,kernel_cmd]
 #  - memory
+#  - cpu
 
 #MEMORY =  128
-#OS = [ kernel="/vmlinuz", initrd="/initrd.img", root="sda1", boot=hd,kernel_cmd="ro"]
\ No newline at end of file
+#OS = [ kernel="/vmlinuz", initrd="/initrd.img", root="sda1", boot=hd,kernel_cmd="ro"]
+OS  = [ boot=hd ]
+