diff --git a/src/northbridge/intel/sandybridge/northbridge.c b/src/northbridge/intel/sandybridge/northbridge.c
index c39933f..b8022b8 100644
--- a/src/northbridge/intel/sandybridge/northbridge.c
+++ b/src/northbridge/intel/sandybridge/northbridge.c
@@ -25,6 +25,7 @@
 #include <delay.h>
 #include <cpu/intel/model_206ax/model_206ax.h>
 #include <cpu/x86/msr.h>
+#include <cpu/x86/mtrr.h>
 #include <device/device.h>
 #include <device/pci.h>
 #include <device/pci_ids.h>
@@ -486,6 +487,8 @@
 static void cpu_bus_init(device_t dev)
 {
 	initialize_cpus(dev->link_list);
+	/* Enable ROM caching if option was selected. */
+	x86_mtrr_enable_rom_caching();
 }
 
 static void cpu_bus_noop(device_t dev)