diff --git a/util/cbfstool/flashmap/kv_pair.c b/util/cbfstool/flashmap/kv_pair.c
index 95e5034e95..c02068c1c2 100644
--- a/util/cbfstool/flashmap/kv_pair.c
+++ b/util/cbfstool/flashmap/kv_pair.c
@@ -56,7 +56,7 @@ struct kv_pair *kv_pair_new(void)
 {
 	struct kv_pair *kv;
 
-	kv = calloc(0, sizeof(*kv));
+	kv = calloc(1, sizeof(*kv));
 	if (!kv)
 		return NULL;