diff --git a/fcm.go b/fcm.go
index 6b501ba..c38a4e0 100644
--- a/fcm.go
+++ b/fcm.go
@@ -27,6 +27,7 @@ import (
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/trace"
 )
 
 const tracerName = "git.bit5.ru/backend/fcm"
@@ -166,7 +167,11 @@ func (c *Client) Validate(ctx context.Context, message Message) (string, error)
 
 func (c *Client) doSendRequest(ctx context.Context, req SendRequest, loggerEnabled bool) (SendResponse, error) {
 
-	_, span := tracer.Start(ctx, "Client.doSendRequest")
+	spanAttrs := trace.WithAttributes(
+		attribute.String("token", req.Message.Token),
+	)
+
+	_, span := tracer.Start(ctx, "Client.doSendRequest", spanAttrs)
 	defer span.End()
 
 	accessToken, err := c.ts.Token()