diff --git a/shroom_server.go b/shroom_server.go
index 8c095a8..e75de22 100644
--- a/shroom_server.go
+++ b/shroom_server.go
@@ -214,7 +214,7 @@ func main() {
 			diff := now*1000 - t
 			log.Println("oldest time", t, " current time", now, "diff", diff)
 			if diff > 2*7*24*60*60*1000 {
-				err = s.ClearOldRows(db, now-8*24*60*60*1000)
+				err = s.ClearOldRows(db, 1000*now-8*24*60*60*1000)
 				if err != nil {
 					log.Println("unable to delete rows: ", err)
 				}