diff --git a/test/cmp_client_test.c b/test/cmp_client_test.c
index 4b3b5f4929..405249010c 100644
--- a/test/cmp_client_test.c
+++ b/test/cmp_client_test.c
@@ -227,7 +227,8 @@ static int test_exec_IR_ses_poll_ok(void)
 static int test_exec_IR_ses_poll_no_timeout(void)
 {
     return test_exec_REQ_ses_poll(OSSL_CMP_PKIBODY_IR, checkAfter,
-                                  2 /* pollCount */, checkAfter + 4,
+                                  2 /* pollCount */,
+                                  checkAfter + 14, /* usually 4 is sufficient */
                                   OSSL_CMP_PKISTATUS_accepted);
 }