diff --git a/src/db/dbScan.c b/src/db/dbScan.c
index b5193ea06..3564bdbc3 100644
--- a/src/db/dbScan.c
+++ b/src/db/dbScan.c
@@ -460,7 +460,7 @@ static void periodicTask(struct scan_list *psl)
 	delay = psl->ticks - (end_time - start_time);
 	if(delay<=0) delay=1;
 	taskDelay(delay);
-	start_time = end_time + delay;
+	start_time = tickGet();
     }
 }