diff --git a/pkg/telemetry/prometheus/packets.go b/pkg/telemetry/prometheus/packets.go
index f43024c37..7a0828abf 100644
--- a/pkg/telemetry/prometheus/packets.go
+++ b/pkg/telemetry/prometheus/packets.go
@@ -330,7 +330,7 @@ func IncrementParticipantJoinWriteInitialResponseFail(writeInitialResponseFail u
 func IncrementParticipantRtcInit(init uint32) {
 	if init > 0 {
 		participantRTCInit.Add(uint64(init))
-		promParticipantJoin.WithLabelValues("rtc_init").Add(float64(init))
+		promParticipantJoin.WithLabelValues("rtc_init", "").Add(float64(init))
 	}
 }