diff --git a/commands/nandtest.c b/commands/nandtest.c
index f6e8f99..0da5444 100644
--- a/commands/nandtest.c
+++ b/commands/nandtest.c
@@ -163,8 +163,8 @@
 	for (i = 0; i < MAX_ECC_BITS; i++)
 		printf("ECC %d bit error(s)	: %d\n", i + 1, ecc_stats[i]);
 
-	printf("ECC >%d bit error(s)	: %d\n", MAX_ECC_BITS, ecc_stats_over);
-	printf("ECC corrections failed	: %d\n", ecc_failed_cnt);
+	printf("ECC >%d bit error(s)	: %u\n", MAX_ECC_BITS, ecc_stats_over);
+	printf("ECC corrections failed	: %u\n", ecc_failed_cnt);
 	printf("-------------------------\n");
 }