diff --git a/tests/heap_lang.v b/tests/heap_lang.v
index 4da765fb33c14c57f2ee3a250cc13a447ae01397..f10a57d99adc64b07130a7af2211f5f1e6edb7b7 100644
--- a/tests/heap_lang.v
+++ b/tests/heap_lang.v
@@ -70,6 +70,6 @@ Section ClosedProofs.
   Proof.
     iProof. iIntros "! Hσ".
     iPvs (heap_alloc nroot) "Hσ" as {h} "[? _]"; first by rewrite nclose_nroot.
-    by iApply heap_e_spec; first by rewrite nclose_nroot.
+    iApply heap_e_spec; last done ; by rewrite nclose_nroot.
   Qed.
 End ClosedProofs.