diff --git a/include/trace/events/damon.h b/include/trace/events/damon.h
index 99ffa601e351..c79f1d4c39af 100644
--- a/include/trace/events/damon.h
+++ b/include/trace/events/damon.h
@@ -11,10 +11,10 @@
 
 TRACE_EVENT(damon_aggregated,
 
-	TP_PROTO(struct damon_target *t, struct damon_region *r,
-		unsigned int nr_regions),
+	TP_PROTO(struct damon_target *t, unsigned int target_id,
+		struct damon_region *r, unsigned int nr_regions),
 
-	TP_ARGS(t, r, nr_regions),
+	TP_ARGS(t, target_id, r, nr_regions),
 
 	TP_STRUCT__entry(
 		__field(unsigned long, target_id)
@@ -26,7 +26,7 @@ TRACE_EVENT(damon_aggregated,
 	),
 
 	TP_fast_assign(
-		__entry->target_id = t->id;
+		__entry->target_id = target_id;
 		__entry->nr_regions = nr_regions;
 		__entry->start = r->ar.start;
 		__entry->end = r->ar.end;
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 6482d510dcbe..1dd153c31c9e 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -514,15 +514,17 @@ static bool kdamond_aggregate_interval_passed(struct damon_ctx *ctx)
 static void kdamond_reset_aggregated(struct damon_ctx *c)
 {
 	struct damon_target *t;
+	unsigned int ti = 0;	/* target's index */
 
 	damon_for_each_target(t, c) {
 		struct damon_region *r;
 
 		damon_for_each_region(r, t) {
-			trace_damon_aggregated(t, r, damon_nr_regions(t));
+			trace_damon_aggregated(t, ti, r, damon_nr_regions(t));
 			r->last_nr_accesses = r->nr_accesses;
 			r->nr_accesses = 0;
 		}
+		ti++;
 	}
 }