diff --git a/pkg/webrtc/conn.go b/pkg/webrtc/conn.go
index 5bc16ede..0845bdda 100644
--- a/pkg/webrtc/conn.go
+++ b/pkg/webrtc/conn.go
@@ -51,6 +51,10 @@ func NewConn(pc *webrtc.PeerConnection) *Conn {
 		}
 		pc.SCTP().Transport().ICETransport().OnSelectedCandidatePairChange(
 			func(pair *webrtc.ICECandidatePair) {
+				// fix situation when candidate pair changes multiple times
+				if i := strings.IndexByte(c.Protocol, '+'); i > 0 {
+					c.Protocol = c.Protocol[:i]
+				}
 				c.Protocol += "+" + pair.Remote.Protocol.String()
 				c.RemoteAddr = fmt.Sprintf(
 					"%s:%d %s", sanitizeIP6(pair.Remote.Address), pair.Remote.Port, pair.Remote.Typ,