diff --git a/test/simulation/142-ntpoverptp b/test/simulation/142-ntpoverptp
index 8f966af..74cb8f7 100755
--- a/test/simulation/142-ntpoverptp
+++ b/test/simulation/142-ntpoverptp
@@ -118,6 +118,6 @@ freq_rms_limit=$default_freq_rms_limit
 
 run_test || test_fail
 check_chronyd_exit || test_fail
-check_sync || test_fail
+check_sync && test_fail
 
 test_pass