diff --git a/src/soc/intel/xeon_sp/cpx/chip.c b/src/soc/intel/xeon_sp/cpx/chip.c
index 19ebe47..cded072 100644
--- a/src/soc/intel/xeon_sp/cpx/chip.c
+++ b/src/soc/intel/xeon_sp/cpx/chip.c
@@ -8,6 +8,7 @@
 #include <fsp/api.h>
 #include <intelblocks/p2sb.h>
 #include <post.h>
+#include <soc/acpi.h>
 #include <soc/cpu.h>
 #include <soc/ramstage.h>
 #include <soc/pm.h>
@@ -496,6 +497,7 @@
 	.read_resources = &pci_domain_read_resources,
 	.set_resources = &xeonsp_cpx_pci_domain_set_resources,
 	.scan_bus = &xeonsp_cpx_pci_domain_scan_bus,
+	.write_acpi_tables  = &northbridge_write_acpi_tables,
 };
 
 static struct device_operations cpu_bus_ops = {