diff --git a/doc/telemetry/telemetry_config.md b/doc/telemetry/telemetry_config.md
index 54500bd5093..85cc99d16ed 100644
--- a/doc/telemetry/telemetry_config.md
+++ b/doc/telemetry/telemetry_config.md
@@ -24,7 +24,6 @@ You may use all, some, or none of the collectors. The following collectors suppo
 | `Statsd`                 | `[]Statsd`    | List of Statsd configurations                                 |                          |
 | `M3`                     | `[]M3`        | List of M3 configurations                                     |                          |
 | `MetricPrefix`           | `string`      | Prefix to add to all emitted metrics                          | spire_server/spire_agent |
-| `TrustDomain`            | `string`      | Optional label value for all metrics                          |                          |
 | `EnableTrustDomainLabel` | `bool`        | Enable optional trust domain label for all metrics            | false                    |
 | `EnableHostnameLabel`    | `bool`        | Enable adding hostname to labels                              | true                     |
 | `AllowedPrefixes`        | `[]string`    | A list of metric prefixes to allow, with '.' as the separator |                          |
@@ -81,8 +80,6 @@ telemetry {
         ]
 
         InMem {}
-        TrustDomain = "example.org"
-        EnaEnableTrustDomainLabel = true
         AllowedLabels = []
         BlockedLabels = []
         AllowedPrefixes = []
diff --git a/pkg/agent/agent.go b/pkg/agent/agent.go
index 550369201f9..9907e01944e 100644
--- a/pkg/agent/agent.go
+++ b/pkg/agent/agent.go
@@ -77,6 +77,7 @@ func (a *Agent) Run(ctx context.Context) error {
 		FileConfig:  a.c.Telemetry,
 		Logger:      a.c.Log.WithField(telemetry.SubsystemName, telemetry.Telemetry),
 		ServiceName: telemetry.SpireAgent,
+		TrustDomain: a.c.TrustDomain.Name(),
 	})
 	if err != nil {
 		return err
diff --git a/pkg/common/telemetry/config.go b/pkg/common/telemetry/config.go
index 7d6909d8162..13327bc7e5d 100644
--- a/pkg/common/telemetry/config.go
+++ b/pkg/common/telemetry/config.go
@@ -10,6 +10,7 @@ type MetricsConfig struct {
 	Logger      logrus.FieldLogger
 	ServiceName string
 	Sinks       []Sink
+	TrustDomain string
 }
 
 type FileConfig struct {
@@ -20,7 +21,6 @@ type FileConfig struct {
 	InMem      *InMem            `hcl:"InMem"`
 
 	MetricPrefix           string   `hcl:"MetricPrefix"`
-	TrustDomain            *string  `hcl:"TrustDomain"`
 	EnableTrustDomainLabel *bool    `hcl:"EnableTrustDomainLabel"`
 	EnableHostnameLabel    *bool    `hcl:"EnableHostnameLabel"`
 	AllowedPrefixes        []string `hcl:"AllowedPrefixes"` // A list of metric prefixes to allow, with '.' as the separator
diff --git a/pkg/common/telemetry/dogstatsd_test.go b/pkg/common/telemetry/dogstatsd_test.go
index ed44e69e6e2..a498c2bf17f 100644
--- a/pkg/common/telemetry/dogstatsd_test.go
+++ b/pkg/common/telemetry/dogstatsd_test.go
@@ -58,6 +58,7 @@ func testDogStatsdConfig() *MetricsConfig {
 	return &MetricsConfig{
 		Logger:      l,
 		ServiceName: "foo",
+		TrustDomain: "test.org",
 		FileConfig: FileConfig{
 			DogStatsd: []DogStatsdConfig{
 				{
diff --git a/pkg/common/telemetry/inmem_test.go b/pkg/common/telemetry/inmem_test.go
index 1b6f8c781f3..e9dcb5f25f2 100644
--- a/pkg/common/telemetry/inmem_test.go
+++ b/pkg/common/telemetry/inmem_test.go
@@ -80,6 +80,7 @@ func testInmemConfig() *MetricsConfig {
 	return &MetricsConfig{
 		Logger:      logger,
 		ServiceName: "foo",
+		TrustDomain: "test.org",
 		FileConfig:  FileConfig{InMem: &InMem{}},
 	}
 }
diff --git a/pkg/common/telemetry/m3_test.go b/pkg/common/telemetry/m3_test.go
index 4823b2e7c00..41a9d418557 100644
--- a/pkg/common/telemetry/m3_test.go
+++ b/pkg/common/telemetry/m3_test.go
@@ -124,6 +124,7 @@ func testM3Config() *MetricsConfig {
 	return &MetricsConfig{
 		Logger:      l,
 		ServiceName: "foo",
+		TrustDomain: "test.org",
 		FileConfig: FileConfig{
 			M3: []M3Config{
 				{
diff --git a/pkg/common/telemetry/metrics.go b/pkg/common/telemetry/metrics.go
index f6078c9d4f3..ecea4947f70 100644
--- a/pkg/common/telemetry/metrics.go
+++ b/pkg/common/telemetry/metrics.go
@@ -11,9 +11,6 @@ import (
 
 const timerGranularity = time.Millisecond
 
-// EnableTrustDomainLabel is the value for the custom TrustDomain label/tag for a metric
-var trustDomain = ""
-
 // Label is a label/tag for a metric
 type Label = metrics.Label
 
@@ -48,7 +45,8 @@ type MetricsImpl struct {
 	c       *MetricsConfig
 	runners []sinkRunner
 	// Each instance of metrics.Metrics in the slice corresponds to one metrics sink type
-	metricsSinks []*metrics.Metrics
+	metricsSinks           []*metrics.Metrics
+	enableTrustDomainLabel bool
 }
 
 var _ Metrics = (*MetricsImpl)(nil)
@@ -87,16 +85,18 @@ func NewMetrics(c *MetricsConfig) (*MetricsImpl, error) {
 			conf.EnableHostnameLabel = true
 		}
 
-		if c.FileConfig.EnableTrustDomainLabel != nil && c.FileConfig.TrustDomain != nil && *c.FileConfig.EnableTrustDomainLabel {
-			trustDomain = *c.FileConfig.TrustDomain
-		}
-
 		conf.EnableTypePrefix = runner.requiresTypePrefix()
 		conf.AllowedLabels = c.FileConfig.AllowedLabels
 		conf.BlockedLabels = c.FileConfig.BlockedLabels
 		conf.AllowedPrefixes = c.FileConfig.AllowedPrefixes
 		conf.BlockedPrefixes = c.FileConfig.BlockedPrefixes
 
+		if c.FileConfig.EnableTrustDomainLabel != nil {
+			impl.enableTrustDomainLabel = *c.FileConfig.EnableTrustDomainLabel
+		} else {
+			impl.enableTrustDomainLabel = false
+		}
+
 		metricsSink, err := metrics.New(conf, fanout)
 		if err != nil {
 			return nil, err
@@ -120,7 +120,7 @@ func (m *MetricsImpl) ListenAndServe(ctx context.Context) error {
 }
 
 func (m *MetricsImpl) SetGauge(key []string, val float32) {
-	if trustDomain != "" {
+	if m.enableTrustDomainLabel {
 		m.SetGaugeWithLabels(key, val, []Label{})
 	} else {
 		for _, s := range m.metricsSinks {
@@ -131,16 +131,10 @@ func (m *MetricsImpl) SetGauge(key []string, val float32) {
 
 // SetGaugeWithLabels delegates to embedded metrics, sanitizing labels
 func (m *MetricsImpl) SetGaugeWithLabels(key []string, val float32, labels []Label) {
-	if trustDomain != "" {
-		for i, label := range labels {
-			if label.Name == TrustDomainID {
-				label.Value = trustDomain
-			}
-		}
+	if m.enableTrustDomainLabel {
+		labels = append(labels, Label{Name: TrustDomain, Value: m.c.TrustDomain})
 	}
 
-	// or optionally, the label could have another name instead of TrustDomainID and just append that to the list of exsiting labels.
-	// labels = append(labels, Label{Name: TrustDomain, Value: trustDomain})
 	sanitizedLabels := SanitizeLabels(labels)
 	for _, s := range m.metricsSinks {
 		s.SetGaugeWithLabels(key, val, sanitizedLabels)
@@ -154,7 +148,7 @@ func (m *MetricsImpl) EmitKey(key []string, val float32) {
 }
 
 func (m *MetricsImpl) IncrCounter(key []string, val float32) {
-	if trustDomain != "" {
+	if m.enableTrustDomainLabel {
 		m.IncrCounterWithLabels(key, val, []Label{})
 	} else {
 		for _, s := range m.metricsSinks {
@@ -165,12 +159,8 @@ func (m *MetricsImpl) IncrCounter(key []string, val float32) {
 
 // IncrCounterWithLabels delegates to embedded metrics, sanitizing labels
 func (m *MetricsImpl) IncrCounterWithLabels(key []string, val float32, labels []Label) {
-	if trustDomain != "" {
-		for i, label := range labels {
-			if label.Name == TrustDomainID {
-				label.Value = trustDomain
-			}
-		}
+	if m.enableTrustDomainLabel {
+		labels = append(labels, Label{Name: TrustDomain, Value: m.c.TrustDomain})
 	}
 
 	sanitizedLabels := SanitizeLabels(labels)
@@ -180,7 +170,7 @@ func (m *MetricsImpl) IncrCounterWithLabels(key []string, val float32, labels []
 }
 
 func (m *MetricsImpl) AddSample(key []string, val float32) {
-	if trustDomain != "" {
+	if m.enableTrustDomainLabel {
 		m.AddSampleWithLabels(key, val, []Label{})
 	} else {
 		for _, s := range m.metricsSinks {
@@ -191,12 +181,8 @@ func (m *MetricsImpl) AddSample(key []string, val float32) {
 
 // AddSampleWithLabels delegates to embedded metrics, sanitizing labels
 func (m *MetricsImpl) AddSampleWithLabels(key []string, val float32, labels []Label) {
-	if trustDomain != "" {
-		for i, label := range labels {
-			if label.Name == TrustDomainID {
-				label.Value = trustDomain
-			}
-		}
+	if m.enableTrustDomainLabel {
+		labels = append(labels, Label{Name: TrustDomain, Value: m.c.TrustDomain})
 	}
 
 	sanitizedLabels := SanitizeLabels(labels)
@@ -206,7 +192,7 @@ func (m *MetricsImpl) AddSampleWithLabels(key []string, val float32, labels []La
 }
 
 func (m *MetricsImpl) MeasureSince(key []string, start time.Time) {
-	if trustDomain != "" {
+	if m.enableTrustDomainLabel {
 		m.MeasureSinceWithLabels(key, start, []Label{})
 	} else {
 		for _, s := range m.metricsSinks {
@@ -217,12 +203,8 @@ func (m *MetricsImpl) MeasureSince(key []string, start time.Time) {
 
 // MeasureSinceWithLabels delegates to embedded metrics, sanitizing labels
 func (m *MetricsImpl) MeasureSinceWithLabels(key []string, start time.Time, labels []Label) {
-	if trustDomain != "" {
-		for i, label := range labels {
-			if label.Name == TrustDomainID {
-				label.Value = trustDomain
-			}
-		}
+	if m.enableTrustDomainLabel {
+		labels = append(labels, Label{Name: TrustDomain, Value: m.c.TrustDomain})
 	}
 
 	sanitizedLabels := SanitizeLabels(labels)
diff --git a/pkg/common/telemetry/names.go b/pkg/common/telemetry/names.go
index fe5be2af7a4..2ee2dfc43ec 100644
--- a/pkg/common/telemetry/names.go
+++ b/pkg/common/telemetry/names.go
@@ -604,9 +604,6 @@ const (
 	// TrustDomainID tags the ID of some trust domain
 	TrustDomainID = "trust_domain_id"
 
-	// TrustDomainName tags the custom trust domain name provided for telemetry
-	TrustDomainName = "trust_domain_name"
-
 	// Unknown tags some unknown caller, entity, or status
 	Unknown = "unknown"
 
diff --git a/pkg/common/telemetry/prometheus_test.go b/pkg/common/telemetry/prometheus_test.go
index 9a58b21d044..659d59ca47d 100644
--- a/pkg/common/telemetry/prometheus_test.go
+++ b/pkg/common/telemetry/prometheus_test.go
@@ -82,6 +82,7 @@ func testPrometheusConfig() *MetricsConfig {
 	return &MetricsConfig{
 		Logger:      l,
 		ServiceName: "foo",
+		TrustDomain: "test.org",
 		FileConfig: FileConfig{
 			// Let prometheus listen on a random port
 			Prometheus: &PrometheusConfig{},
diff --git a/pkg/common/telemetry/statsd_test.go b/pkg/common/telemetry/statsd_test.go
index d7cde716df6..96d216d3cf3 100644
--- a/pkg/common/telemetry/statsd_test.go
+++ b/pkg/common/telemetry/statsd_test.go
@@ -64,6 +64,7 @@ func testStatsdConfigWithPort(port int) *MetricsConfig {
 	return &MetricsConfig{
 		Logger:      l,
 		ServiceName: "foo",
+		TrustDomain: "test.org",
 		FileConfig: FileConfig{
 			Statsd: []StatsdConfig{
 				{
diff --git a/pkg/server/server.go b/pkg/server/server.go
index 6693e2fd2e1..115ed5e4af5 100644
--- a/pkg/server/server.go
+++ b/pkg/server/server.go
@@ -92,6 +92,7 @@ func (s *Server) run(ctx context.Context) (err error) {
 		FileConfig:  s.config.Telemetry,
 		Logger:      s.config.Log.WithField(telemetry.SubsystemName, telemetry.Telemetry),
 		ServiceName: telemetry.SpireServer,
+		TrustDomain: s.config.TrustDomain.Name(),
 	})
 	if err != nil {
 		return err