diff --git a/src/device/Makefile.inc b/src/device/Makefile.inc
index 391811515e..1e19a7cdc9 100644
--- a/src/device/Makefile.inc
+++ b/src/device/Makefile.inc
@@ -10,6 +10,7 @@ ramstage-$(CONFIG_PCIEXP_PLUGIN_SUPPORT) += pciexp_device.c
 ramstage-$(CONFIG_CARDBUS_PLUGIN_SUPPORT) += cardbus_device.c
 ramstage-$(CONFIG_AZALIA_PLUGIN_SUPPORT) += azalia_device.c
 ramstage-$(CONFIG_ARCH_RAMSTAGE_X86_32) += pnp_device.c
+ramstage-$(CONFIG_ARCH_RAMSTAGE_X86_64) += pnp_device.c
 ramstage-$(CONFIG_PCI) += pci_ops.c
 ramstage-$(CONFIG_PCI) += pci_early.c
 ramstage-y += smbus_ops.c