diff --git a/jnopo-talk/src/main/java/br/org/soujava/coffewithjava/jnopo/Ranking.java b/jnopo-talk/src/main/java/br/org/soujava/coffewithjava/jnopo/Ranking.java
index 5a4c18f..cbf2ea8 100644
--- a/jnopo-talk/src/main/java/br/org/soujava/coffewithjava/jnopo/Ranking.java
+++ b/jnopo-talk/src/main/java/br/org/soujava/coffewithjava/jnopo/Ranking.java
@@ -12,6 +12,7 @@ public static Ranking winnerRanking(Playoffs playoffs) {
         return of(playoffs, g -> g.winner().name());
     }
 
+    @WithSpan
     private static Ranking of(Playoffs playoffs, Function<GameMatch, String> groupingFunction) {
         var data =
                 playoffs.listNonTiedGameMatches()