diff --git a/changelog/bugfixes/2026-04-28-virtualbox.md b/changelog/bugfixes/2026-04-28-virtualbox.md
new file mode 100644
index 0000000000..9990aa1a49
--- /dev/null
+++ b/changelog/bugfixes/2026-04-28-virtualbox.md
@@ -0,0 +1 @@
+- Fixed booting the VirtualBox image, which was broken since upstream Ignition changed how their VirtualBox support works. The Vagrant VirtualBox image was unaffected.
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/files/amd64_defconfig-6.12 b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/files/amd64_defconfig-6.12
index c19cbac213..23cacc9adf 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/files/amd64_defconfig-6.12
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/files/amd64_defconfig-6.12
@@ -108,6 +108,7 @@ CONFIG_TCG_INFINEON=m
 CONFIG_TCG_NSC=m
 CONFIG_UPROBE_EVENTS=y
 CONFIG_USB_OHCI_HCD_SSB=y
+CONFIG_VBOXGUEST=m
 CONFIG_VFIO_PCI_IGD=y
 CONFIG_VFIO_PCI_VGA=y
 CONFIG_VHOST_VSOCK=m