diff --git a/lg.go b/lg.go
index fc769c7..d904626 100644
--- a/lg.go
+++ b/lg.go
@@ -44,6 +44,9 @@ var (
 
 func (p *Prefix) checkLGState() {
 	log.Trace().Str("Prefix", p.prefix).Msg("checking prefix state")
+	upstreamsGauge.Reset()
+	upstreams2Gauge.Reset()
+	bgpCommunitiesGauge.Reset()
 	url := ripestatBase + "/data/looking-glass/data.json?resource=" + p.prefix + "&sourceapp=" + appId
 	resp, err := http.Get(url)
 	if err != nil {
diff --git a/vis.go b/vis.go
index 0975a43..ee4ac20 100644
--- a/vis.go
+++ b/vis.go
@@ -25,6 +25,7 @@ var (
 
 func (p *Prefix) checkVisState() {
 	log.Trace().Str("Prefix", p.prefix).Msg("checking prefix state")
+	prefixStateGauge.Reset()
 	url := ripestatBase + "/data/visibility/data.json?data_overload_limit=ignore&include=peers_seeing&resource=" + p.prefix + "&sourceapp=" + appId
 	resp, err := http.Get(url)
 	if err != nil {