diff --git a/src/soc/intel/denverton_ns/bootblock/bootblock.c b/src/soc/intel/denverton_ns/bootblock/bootblock.c
index f16ee20..57e3a2e 100644
--- a/src/soc/intel/denverton_ns/bootblock/bootblock.c
+++ b/src/soc/intel/denverton_ns/bootblock/bootblock.c
@@ -37,8 +37,8 @@
 			.MicrocodeRegionLength =
 				(UINT32)CONFIG_CPU_MICROCODE_CBFS_LEN,
 			.CodeRegionBase =
-				(UINT32)(0x100000000ULL - CONFIG_CBFS_SIZE),
-			.CodeRegionLength = (UINT32)CONFIG_CBFS_SIZE,
+				(UINT32)(0x100000000ULL - CONFIG_ROM_SIZE),
+			.CodeRegionLength = (UINT32)CONFIG_ROM_SIZE,
 			.Reserved1 = {0},
 	},
 	.FsptConfig = {