diff --git a/mave.c b/mave.c
index fd09e5a..1a64f79 100644
--- a/mave.c
+++ b/mave.c
@@ -58,7 +58,7 @@ static void mave_reset(struct filter *filter)
 
 	m->cnt = 0;
 	m->index = 0;
-	m->sum = 0;
+	m->sum = tmv_zero();
 	memset(m->val, 0, m->len * sizeof(*m->val));
 }
 
diff --git a/tsproc.c b/tsproc.c
index 63c989d..06c0184 100644
--- a/tsproc.c
+++ b/tsproc.c
@@ -178,7 +178,7 @@ int tsproc_update_delay(struct tsproc *tsp, tmv_t *delay)
 
 int tsproc_update_offset(struct tsproc *tsp, tmv_t *offset, double *weight)
 {
-	tmv_t delay = 0, raw_delay = 0;
+	tmv_t delay = tmv_zero(), raw_delay = tmv_zero();
 
 	if (tmv_is_zero(tsp->t1) || tmv_is_zero(tsp->t2))
 		return -1;