1 files changed, 1 insertions, 0 deletions

diff --git a/src/zor.c b/src/zor.c
index f594828..240024e 100644
--- a/src/zor.c
+++ b/src/zor.c
@@ -20,6 +20,7 @@ zor(z_t a, z_t b, z_t c)
 
 	m = MAX(b->used, c->used);
 	n = b->used + c->used - m;
+	a->used = m;
 
 	ENSURE_SIZE(a, m);