diff --git a/pkg/cli/testdata/tsdump/json b/pkg/cli/testdata/tsdump/json
index 15a14a80c4f9..e7a6ee14264d 100644
--- a/pkg/cli/testdata/tsdump/json
+++ b/pkg/cli/testdata/tsdump/json
@@ -31,4 +31,4 @@ cr.node.admission.admitted.elastic.cpu 2 1.000000 1711130560
 ----
 POST: https://example.com/data
 DD-API-KEY: api-key
-Body: {"series":[{"metric":"crdb.tsdump.admission.admitted.elastic.cpu","type":0,"points":[{"timestamp":17111304,"value":0},{"timestamp":17111304,"value":1},{"timestamp":17111304,"value":1},{"timestamp":17111305,"value":1}],"resources":null,"tags":["cluster_type:SELF_HOSTED","job:cockroachdb","region:local","cluster:test-cluster","upload_id:test-cluster-1234","node_id:1"]},{"metric":"crdb.tsdump.admission.admitted.elastic.cpu","type":0,"points":[{"timestamp":17111305,"value":1},{"timestamp":17111305,"value":1},{"timestamp":17111305,"value":1},{"timestamp":17111305,"value":1},{"timestamp":17111305,"value":1},{"timestamp":17111305,"value":1}],"resources":null,"tags":["cluster_type:SELF_HOSTED","job:cockroachdb","region:local","cluster:test-cluster","upload_id:test-cluster-1234","node_id:2"]}]}
+Body: {"series":[{"metric":"crdb.tsdump.admission.admitted.elastic.cpu","type":0,"points":[{"timestamp":17111304,"value":0},{"timestamp":17111304,"value":1},{"timestamp":17111304,"value":1},{"timestamp":17111305,"value":1}],"resources":null,"tags":["cluster_type:SELF_HOSTED","job:cockroachdb","region:local","cluster_label:test-cluster","upload_id:test-cluster-1234","node_id:1"]},{"metric":"crdb.tsdump.admission.admitted.elastic.cpu","type":0,"points":[{"timestamp":17111305,"value":1},{"timestamp":17111305,"value":1},{"timestamp":17111305,"value":1},{"timestamp":17111305,"value":1},{"timestamp":17111305,"value":1},{"timestamp":17111305,"value":1}],"resources":null,"tags":["cluster_type:SELF_HOSTED","job:cockroachdb","region:local","cluster_label:test-cluster","upload_id:test-cluster-1234","node_id:2"]}]}
diff --git a/pkg/cli/tsdump.go b/pkg/cli/tsdump.go
index e623f06c3f20..112009308237 100644
--- a/pkg/cli/tsdump.go
+++ b/pkg/cli/tsdump.go
@@ -449,7 +449,7 @@ func (d *datadogWriter) Emit(data *tspb.TimeSeriesData) error {
 	tags = append(tags, "region:local")
 
 	if debugTimeSeriesDumpOpts.clusterLabel != "" {
-		tags = append(tags, makeDDTag("cluster", debugTimeSeriesDumpOpts.clusterLabel))
+		tags = append(tags, makeDDTag("cluster_label", debugTimeSeriesDumpOpts.clusterLabel))
 	}
 
 	tags = append(tags, makeDDTag(uploadIDTag, d.uploadID))