diff --git a/plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/LibvirtVMDef.java b/plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/LibvirtVMDef.java
index 9be12c305793..8ff720ea73f1 100644
--- a/plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/LibvirtVMDef.java
+++ b/plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/LibvirtVMDef.java
@@ -967,7 +967,7 @@ public String toString() {
                 netBuilder.append("<script path='" + _scriptPath + "'/>\n");
             }
             if (_pxeDisable) {
-                netBuilder.append("<rom bar='off' file='dummy'/>");
+                netBuilder.append("<rom bar='off' file=''/>");
             }
             if (_virtualPortType != null) {
                 netBuilder.append("<virtualport type='" + _virtualPortType + "'>\n");