diff --git a/test/run-drun/ok/par.tc.ok b/test/run-drun/ok/par.tc.ok
index de9ebdaae49..545a7f3affa 100644
--- a/test/run-drun/ok/par.tc.ok
+++ b/test/run-drun/ok/par.tc.ok
@@ -1 +1 @@
-par.mo:53.9-53.67: warning [M0204], unrecognised attribute yeah in parenthetical note
+par.mo:54.9-54.67: warning [M0204], unrecognised attribute yeah in parenthetical note
diff --git a/test/run-drun/par.mo b/test/run-drun/par.mo
index 6338980062b..03adce4104d 100644
--- a/test/run-drun/par.mo
+++ b/test/run-drun/par.mo
@@ -1,9 +1,10 @@
-import { call_raw; debugPrint; principalOfActor } = "mo:⛔";
+import { call_raw; debugPrint; principalOfActor; replyDeadline } = "mo:⛔";
 import Cycles = "cycles/cycles";
 
 actor A {
 
     func foo(next : () -> async ()) : async () {
+        assert 0 : Nat64 == replyDeadline();
         await (with cycles = 3000) next()
     };