diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 2bcaaf9b98806ebb93e9c8dc3d028d9aacef2f4b..c31d85a840852a46c5b0aecfaab5441c6353ca54 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -524,6 +524,7 @@ found:
         QTAILQ_REMOVE(&s->discards, p, next);
         d->offset = MIN(d->offset, p->offset);
         d->bytes += p->bytes;
+        g_free(p);
     }
 }