diff --git a/config.sh b/config.sh
index 45cd20e..8d25924 100755
--- a/config.sh
+++ b/config.sh
@@ -178,3 +178,6 @@ fi
 vm_slave_first_disk_mb=65535
 vm_slave_second_disk_mb=65535
 vm_slave_third_disk_mb=65535
+
+# Set to 1 to run VirtualBox in headless mode
+headless=0
diff --git a/functions/vm.sh b/functions/vm.sh
index c620e78..6a3cff8 100755
--- a/functions/vm.sh
+++ b/functions/vm.sh
@@ -159,8 +159,11 @@ start_vm() {
     name=$1
 
     # Just start it
-    #VBoxManage startvm $name --type headless
-    VBoxManage startvm $name
+    if [[ $headless == 1 ]]; then
+        VBoxManage startvm $name --type headless
+    else
+        VBoxManage startvm $name
+    fi
 }
 
 mount_iso_to_vm() {