diff --git a/src/northbridge/intel/x4x/Kconfig b/src/northbridge/intel/x4x/Kconfig
index 9ac9b87..27754c8 100644
--- a/src/northbridge/intel/x4x/Kconfig
+++ b/src/northbridge/intel/x4x/Kconfig
@@ -29,4 +29,8 @@
 	hex
 	default 0x100000
 
+config MAX_CPUS
+	int
+	default 4
+
 endif