diff --git a/src/northbridge/intel/ironlake/Kconfig b/src/northbridge/intel/ironlake/Kconfig
index 9fb7769..a614058 100644
--- a/src/northbridge/intel/ironlake/Kconfig
+++ b/src/northbridge/intel/ironlake/Kconfig
@@ -39,10 +39,10 @@
 	  The amount of anticipated stack usage in CAR by bootblock and
 	  other stages.
 
-config MMCONF_BASE_ADDRESS
+config ECAM_MMCONF_BASE_ADDRESS
 	default 0xe0000000
 
-config MMCONF_BUS_NUMBER
+config ECAM_MMCONF_BUS_NUMBER
 	default 256
 
 config INTEL_GMA_BCLV_OFFSET