diff --git a/sys/dev/vmgenc/vmgenc_acpi.c b/sys/dev/vmgenc/vmgenc_acpi.c
index 812db6ea7df..718632097ca 100644
--- a/sys/dev/vmgenc/vmgenc_acpi.c
+++ b/sys/dev/vmgenc/vmgenc_acpi.c
@@ -256,7 +256,6 @@ static driver_t vmgenc_driver = {
 	sizeof(struct vmgenc_softc),
 };
 
-static devclass_t vmgenc_devclass;
-DRIVER_MODULE(vmgenc, acpi, vmgenc_driver, vmgenc_devclass, NULL, NULL);
+DRIVER_MODULE(vmgenc, acpi, vmgenc_driver, NULL, NULL);
 MODULE_DEPEND(vmgenc, acpi, 1, 1, 1);
 MODULE_DEPEND(vemgenc, random_harvestq, 1, 1, 1);