diff --git a/openvidu-server/src/main/java/io/openvidu/server/core/Participant.java b/openvidu-server/src/main/java/io/openvidu/server/core/Participant.java
index bb62ab08..ac35e7bd 100644
--- a/openvidu-server/src/main/java/io/openvidu/server/core/Participant.java
+++ b/openvidu-server/src/main/java/io/openvidu/server/core/Participant.java
@@ -314,8 +314,8 @@ public class Participant {
 		json.addProperty("sessionId", this.sessionId);
 		json.addProperty("createdAt", this.token.getCreatedAt());
 		json.addProperty("activeAt", this.activeAt);
-		json.addProperty("location", this.location.toString());
-		json.addProperty("ip", this.location.getIp());
+		json.addProperty("location", this.location != null ? this.location.toString() : "unknown");
+		json.addProperty("ip", this.location != null ? this.location.getIp() : null);
 		json.addProperty("platform", this.platform);
 		if (this.token.getToken() != null) {
 			json.addProperty("token", this.token.getToken());