diff --git a/labs/virtualbox/src/main/java/org/jclouds/virtualbox/VirtualBoxContextBuilder.java b/labs/virtualbox/src/main/java/org/jclouds/virtualbox/VirtualBoxContextBuilder.java
index b7a17c28c9..d5668ec389 100644
--- a/labs/virtualbox/src/main/java/org/jclouds/virtualbox/VirtualBoxContextBuilder.java
+++ b/labs/virtualbox/src/main/java/org/jclouds/virtualbox/VirtualBoxContextBuilder.java
@@ -44,7 +44,7 @@ import com.google.inject.Module;
 public class VirtualBoxContextBuilder extends StandaloneComputeServiceContextBuilder<Supplier> {
 
    public VirtualBoxContextBuilder(Properties properties) {
-      super(Supplier.class, properties);
+      super(Supplier.class, new VirtualBoxPropertiesBuilder(properties).defaultProperties());
    }
 
    @Override