diff --git a/malloc/malloc.c b/malloc/malloc.c
index 92239b3..998879a 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -2948,7 +2948,7 @@ tcache_get (size_t tc_idx)
 {
   tcache_entry *e = tcache->entries[tc_idx];
   assert (tc_idx < TCACHE_MAX_BINS);
-  assert (tcache->entries[tc_idx] > 0);
+  assert (tcache->counts[tc_idx] > 0);
   tcache->entries[tc_idx] = e->next;
   --(tcache->counts[tc_idx]);
   e->key = NULL;