diff --git a/src/northbridge/intel/gm45/Kconfig b/src/northbridge/intel/gm45/Kconfig
index e3675db..3f632a1 100644
--- a/src/northbridge/intel/gm45/Kconfig
+++ b/src/northbridge/intel/gm45/Kconfig
@@ -23,10 +23,10 @@
 	string
 	default "8086,2a42"
 
-config MMCONF_BASE_ADDRESS
+config ECAM_MMCONF_BASE_ADDRESS
 	default 0xf0000000
 
-config MMCONF_BUS_NUMBER
+config ECAM_MMCONF_BUS_NUMBER
 	int
 	default 64