diff --git a/pkg/rtc/participant.go b/pkg/rtc/participant.go
index 557276b5d..7eb611b3c 100644
--- a/pkg/rtc/participant.go
+++ b/pkg/rtc/participant.go
@@ -1019,7 +1019,7 @@ func (p *ParticipantImpl) updateRidsFromSDP(offer *webrtc.SessionDescription) {
 			for i := 0; i < n; i++ {
 				pti.sdpRids[i] = rids[i]
 			}
-			for i := 0; i < len(pti.sdpRids); i++ {
+			for i := n; i < len(pti.sdpRids); i++ {
 				pti.sdpRids[i] = ""
 			}