diff --git a/src/northbridge/intel/i945/errata.c b/src/northbridge/intel/i945/errata.c
index e8793c9..3057ae9 100644
--- a/src/northbridge/intel/i945/errata.c
+++ b/src/northbridge/intel/i945/errata.c
@@ -9,9 +9,9 @@
 	u32 reg32;
 
 	/* Mobile Intel 945 Express only */
-	reg32 = MCHBAR32(FSBPMC3);
+	reg32 = mchbar_read32(FSBPMC3);
 	reg32 &= ~((1 << 13) | (1 << 29));
-	MCHBAR32(FSBPMC3) = reg32;
+	mchbar_write32(FSBPMC3, reg32);
 
 	return 0;
 }