diff --git a/src/northbridge/intel/haswell/raminit.c b/src/northbridge/intel/haswell/raminit.c
index 7fd6b3f..fbe4cd5 100644
--- a/src/northbridge/intel/haswell/raminit.c
+++ b/src/northbridge/intel/haswell/raminit.c
@@ -51,7 +51,7 @@
 	       pei_data->mrc_input, mrc_size);
 }
 
-static const char *ecc_decoder[] = {
+static const char *const ecc_decoder[] = {
 	"inactive",
 	"active on IO",
 	"disabled on IO",