diff --git a/modules/distributor/distributor.go b/modules/distributor/distributor.go
index 26936f9b468..662c78ba3eb 100644
--- a/modules/distributor/distributor.go
+++ b/modules/distributor/distributor.go
@@ -629,14 +629,14 @@ func requestsByTraceID(batches []*v1.ResourceSpans, userID string, spanCount, ma
 func processAttributes(attributes []*v1_common.KeyValue, maxAttrSize int, count *int) {
 	for _, attr := range attributes {
 		if len(attr.Key) > maxAttrSize {
-			attr.Key = attr.Key[:maxAttrSize] + "_truncated"
+			attr.Key = attr.Key[:maxAttrSize]
 			*count++
 		}
 
 		switch value := attr.GetValue().Value.(type) {
 		case *v1_common.AnyValue_StringValue:
 			if len(value.StringValue) > maxAttrSize {
-				value.StringValue = value.StringValue[:maxAttrSize] + "_truncated"
+				value.StringValue = value.StringValue[:maxAttrSize]
 				*count++
 			}
 		default:
diff --git a/modules/distributor/distributor_test.go b/modules/distributor/distributor_test.go
index e048815e18e..e5ff5a92641 100644
--- a/modules/distributor/distributor_test.go
+++ b/modules/distributor/distributor_test.go
@@ -753,10 +753,10 @@ func TestProcessAttributes(t *testing.T) {
 			// find large resource attributes
 			for _, attr := range resource.Resource.Attributes {
 				if attr.Key == "long value" {
-					assert.Equal(t, longString[:maxAttrByte]+"_truncated", attr.Value.GetStringValue())
+					assert.Equal(t, longString[:maxAttrByte], attr.Value.GetStringValue())
 				}
 				if attr.Value.GetStringValue() == "long key" {
-					assert.Equal(t, longString[:maxAttrByte]+"_truncated", attr.Key)
+					assert.Equal(t, longString[:maxAttrByte], attr.Key)
 				}
 			}
 			// find large span attributes
@@ -764,10 +764,10 @@ func TestProcessAttributes(t *testing.T) {
 				for _, span := range scope.Spans {
 					for _, attr := range span.Attributes {
 						if attr.Key == "long value" {
-							assert.Equal(t, longString[:maxAttrByte]+"_truncated", attr.Value.GetStringValue())
+							assert.Equal(t, longString[:maxAttrByte], attr.Value.GetStringValue())
 						}
 						if attr.Value.GetStringValue() == "long key" {
-							assert.Equal(t, longString[:maxAttrByte]+"_truncated", attr.Key)
+							assert.Equal(t, longString[:maxAttrByte], attr.Key)
 						}
 					}
 				}
@@ -796,6 +796,7 @@ func BenchmarkTestsByRequestID(b *testing.B) {
 	}
 
 	b.ResetTimer()
+	b.ReportAllocs()
 
 	for i := 0; i < b.N; i++ {
 		for _, blerg := range ils {