diff --git a/builder/virtualbox/iso/builder.go b/builder/virtualbox/iso/builder.go
index bf1953b84..2f3c52a23 100644
--- a/builder/virtualbox/iso/builder.go
+++ b/builder/virtualbox/iso/builder.go
@@ -90,8 +90,13 @@ type Config struct {
 	// defaults to ide. When set to sata, the drive is attached to an AHCI SATA
 	// controller. When set to scsi, the drive is attached to an LsiLogic SCSI
 	// controller. When set to pcie, the drive is attached to an NVMe
-	// controller. (Please note that when you use "pcie", you'll need to have
-	// Virtualbox 6 and an [extension pack](https://www.virtualbox.org/wiki/Downloads#VirtualBox6.0.14OracleVMVirtualBoxExtensionPack))
+	// controller. Please note that when you use "pcie", you'll need to have
+	// Virtualbox 6, install an [extension
+	// pack](https://www.virtualbox.org/wiki/Downloads#VirtualBox6.0.14OracleVMVirtualBoxExtensionPack)
+	// and you will need to enable EFI mode for nvme to work, ex:
+	//   "vboxmanage": [
+	//       [ "modifyvm", "{{.Name}}", "--firmware", "EFI" ],
+	//    ]
 	HardDriveInterface string `mapstructure:"hard_drive_interface" required:"false"`
 	// The number of ports available on any SATA controller created, defaults
 	// to 1. VirtualBox supports up to 30 ports on a maximum of 1 SATA
diff --git a/website/source/partials/builder/virtualbox/iso/_Config-not-required.html.md b/website/source/partials/builder/virtualbox/iso/_Config-not-required.html.md
index 64ff6c34c..c636ed567 100644
--- a/website/source/partials/builder/virtualbox/iso/_Config-not-required.html.md
+++ b/website/source/partials/builder/virtualbox/iso/_Config-not-required.html.md
@@ -48,8 +48,13 @@
     defaults to ide. When set to sata, the drive is attached to an AHCI SATA
     controller. When set to scsi, the drive is attached to an LsiLogic SCSI
     controller. When set to pcie, the drive is attached to an NVMe
-    controller. (Please note that when you use "pcie", you'll need to have
-    Virtualbox 6 and an [extension pack](https://www.virtualbox.org/wiki/Downloads#VirtualBox6.0.14OracleVMVirtualBoxExtensionPack))
+    controller. Please note that when you use "pcie", you'll need to have
+    Virtualbox 6, install an [extension
+    pack](https://www.virtualbox.org/wiki/Downloads#VirtualBox6.0.14OracleVMVirtualBoxExtensionPack)
+    and you will need to enable EFI mode for nvme to work, ex:
+      "vboxmanage": [
+          [ "modifyvm", "{{.Name}}", "--firmware", "EFI" ],
+       ]
     
 -   `sata_port_count` (int) - The number of ports available on any SATA controller created, defaults
     to 1. VirtualBox supports up to 30 ports on a maximum of 1 SATA