diff --git a/leap-a-day.c b/leap-a-day.c
index 39e4a4c..5c015de 100644
--- a/leap-a-day.c
+++ b/leap-a-day.c
@@ -104,6 +104,12 @@ void clear_time_state(void)
 	tx.status = STA_PLL;
 	ret = adjtimex(&tx);
 
+	/* Clear maxerror, as it can cause UNSYNC to be set */
+	tx.modes = ADJ_MAXERROR;
+	tx.maxerror = 0;
+	ret = adjtimex(&tx);
+
+	/* Clear the status */
 	tx.modes = ADJ_STATUS;
 	tx.status = 0;
 	ret = adjtimex(&tx);