diff --git a/pkg/distributor/otel_test.go b/pkg/distributor/otel_test.go
index deffa2d6ae..5066a345a6 100644
--- a/pkg/distributor/otel_test.go
+++ b/pkg/distributor/otel_test.go
@@ -26,7 +26,6 @@ import (
 	"github.com/prometheus/common/model"
 	"github.com/prometheus/prometheus/model/labels"
 	"github.com/prometheus/prometheus/prompb"
-	prometheustranslator "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheus"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"go.opentelemetry.io/collector/pdata/pcommon"
@@ -50,6 +49,7 @@ func TestOTelMetricsToTimeSeries(t *testing.T) {
 	}, []string{tenantID, "group"})
 	resourceAttrs := map[string]string{
 		"service.name":        "service name",
+		"service.namespace":   "service namespace",
 		"service.instance.id": "service ID",
 		"existent-attr":       "resource value",
 		// This one is for testing conflict with metric attribute.
@@ -59,32 +59,6 @@ func TestOTelMetricsToTimeSeries(t *testing.T) {
 		// This one is for testing conflict with auto-generated instance attribute.
 		"instance": "resource value",
 	}
-	expTargetInfoLabels := []mimirpb.LabelAdapter{
-		{
-			Name:  labels.MetricName,
-			Value: "target_info",
-		},
-	}
-	for k, v := range resourceAttrs {
-		switch k {
-		case "service.name":
-			k = "job"
-		case "service.instance.id":
-			k = "instance"
-		case "job", "instance":
-			// Ignore, as these labels are generated from service.name and service.instance.id
-			continue
-		default:
-			k = prometheustranslator.NormalizeLabel(k, false)
-		}
-		expTargetInfoLabels = append(expTargetInfoLabels, mimirpb.LabelAdapter{
-			Name:  k,
-			Value: v,
-		})
-	}
-	slices.SortStableFunc(expTargetInfoLabels, func(a, b mimirpb.LabelAdapter) int {
-		return strings.Compare(a.Name, b.Name)
-	})
 
 	md := pmetric.NewMetrics()
 	{
@@ -105,6 +79,7 @@ func TestOTelMetricsToTimeSeries(t *testing.T) {
 		name                      string
 		promoteResourceAttributes []string
 		expectedLabels            []mimirpb.LabelAdapter
+		expectedInfoLabels        []mimirpb.LabelAdapter
 	}{
 		{
 			name:                      "Successful conversion without resource attribute promotion",
@@ -120,13 +95,35 @@ func TestOTelMetricsToTimeSeries(t *testing.T) {
 				},
 				{
 					Name:  "job",
-					Value: "service name",
+					Value: "service namespace/service name",
 				},
 				{
 					Name:  "metric_attr",
 					Value: "metric value",
 				},
 			},
+			expectedInfoLabels: []mimirpb.LabelAdapter{
+				{
+					Name:  "__name__",
+					Value: "target_info",
+				},
+				{
+					Name:  "existent_attr",
+					Value: "resource value",
+				},
+				{
+					Name:  "metric_attr",
+					Value: "resource value",
+				},
+				{
+					Name:  "job",
+					Value: "service namespace/service name",
+				},
+				{
+					Name:  "instance",
+					Value: "service ID",
+				},
+			},
 		},
 		{
 			name:                      "Successful conversion with resource attribute promotion",
@@ -142,7 +139,7 @@ func TestOTelMetricsToTimeSeries(t *testing.T) {
 				},
 				{
 					Name:  "job",
-					Value: "service name",
+					Value: "service namespace/service name",
 				},
 				{
 					Name:  "metric_attr",
@@ -153,6 +150,28 @@ func TestOTelMetricsToTimeSeries(t *testing.T) {
 					Value: "resource value",
 				},
 			},
+			expectedInfoLabels: []mimirpb.LabelAdapter{
+				{
+					Name:  "__name__",
+					Value: "target_info",
+				},
+				{
+					Name:  "existent_attr",
+					Value: "resource value",
+				},
+				{
+					Name:  "metric_attr",
+					Value: "resource value",
+				},
+				{
+					Name:  "job",
+					Value: "service namespace/service name",
+				},
+				{
+					Name:  "instance",
+					Value: "service ID",
+				},
+			},
 		},
 		{
 			name:                      "Successful conversion with resource attribute promotion, conflicting resource attributes are ignored",
@@ -168,7 +187,7 @@ func TestOTelMetricsToTimeSeries(t *testing.T) {
 				},
 				{
 					Name:  "job",
-					Value: "service name",
+					Value: "service namespace/service name",
 				},
 				{
 					Name:  "existent_attr",
@@ -179,6 +198,28 @@ func TestOTelMetricsToTimeSeries(t *testing.T) {
 					Value: "metric value",
 				},
 			},
+			expectedInfoLabels: []mimirpb.LabelAdapter{
+				{
+					Name:  "__name__",
+					Value: "target_info",
+				},
+				{
+					Name:  "existent_attr",
+					Value: "resource value",
+				},
+				{
+					Name:  "instance",
+					Value: "service ID",
+				},
+				{
+					Name:  "job",
+					Value: "service namespace/service name",
+				},
+				{
+					Name:  "metric_attr",
+					Value: "resource value",
+				},
+			},
 		},
 	}
 	for _, tc := range testCases {
@@ -205,7 +246,7 @@ func TestOTelMetricsToTimeSeries(t *testing.T) {
 			}
 
 			assert.ElementsMatch(t, ts.Labels, tc.expectedLabels)
-			assert.ElementsMatch(t, targetInfo.Labels, expTargetInfoLabels)
+			assert.ElementsMatch(t, targetInfo.Labels, tc.expectedInfoLabels)
 		})
 	}
 }