diff --git a/import b/import
index 27e5fe6..935958f 100755
--- a/import
+++ b/import
@@ -51,8 +51,9 @@ then
 	do
 		if [[ ! ${datasets[@]} =~ $ds ]]
 		then
+			[[ -f ingress.rrd.bak ]] && mv ingress.rrd.bak ingress.rrd.bak_before_add_$ds
 			cp -f ingress.rrd ingress.rrd.bak_add_$ds
-			./dsaddtor.pl ingress.rrd $ds GAUGE $((48*60*60)) 0 NaN
+			./dsaddtor.pl ingress.rrd $ds GAUGE $((48*60*60)) 0 NaN 2>&1
 		fi
 	done