diff --git a/src/vmm/XenDriver.cc b/src/vmm/XenDriver.cc
index 894b9896cc..493d229111 100644
--- a/src/vmm/XenDriver.cc
+++ b/src/vmm/XenDriver.cc
@@ -354,7 +354,7 @@ int XenDriver::deployment_description(
 
         if( !model.empty() )
         {
-            file << "type=" << model;
+            file << "model=" << model;
             pre_char = ',';
         }