diff --git a/src/vmm/LibVirtDriver.cc b/src/vmm/LibVirtDriver.cc
index 516fec36aa..00c377b174 100644
--- a/src/vmm/LibVirtDriver.cc
+++ b/src/vmm/LibVirtDriver.cc
@@ -727,7 +727,7 @@ int LibVirtDriver::deployment_description_vmware(
 
     if ( arch.empty() )
     {
-        get_default("OS","ARCH",arch);
+        get_default("OS","ARCHITECTURE",arch);
     }
     
     if (arch.empty())