diff --git a/src/northbridge/intel/sandybridge/Kconfig b/src/northbridge/intel/sandybridge/Kconfig
index 0ec4ba2..16cd697 100644
--- a/src/northbridge/intel/sandybridge/Kconfig
+++ b/src/northbridge/intel/sandybridge/Kconfig
@@ -90,6 +90,10 @@
 	help
 	  The MRC blob requires it to be at 0xf0000000.
 
+config MMCONF_BUS_NUMBER
+	int
+	default 64
+
 config DCACHE_RAM_BASE
 	hex
 	default 0xfefe0000