diff --git a/src/northbridge/intel/x4x/raminit_ddr23.c b/src/northbridge/intel/x4x/raminit_ddr23.c
index 61e9e9d..16e257f 100644
--- a/src/northbridge/intel/x4x/raminit_ddr23.c
+++ b/src/northbridge/intel/x4x/raminit_ddr23.c
@@ -1146,7 +1146,7 @@
 static void program_odt(struct sysinfo *s)
 {
 	u8 i;
-	static u16 ddr2_odt[16][2] = {
+	static const u16 ddr2_odt[16][2] = {
 		{ 0x0000, 0x0000 }, /* NC_NC */
 		{ 0x0000, 0x0001 }, /* x8SS_NC */
 		{ 0x0000, 0x0011 }, /* x8DS_NC */