diff --git a/packages/opentelemetry-exporter-prometheus/src/PrometheusExporter.ts b/packages/opentelemetry-exporter-prometheus/src/PrometheusExporter.ts
index ad36dc3c96a..0c44c7356dd 100644
--- a/packages/opentelemetry-exporter-prometheus/src/PrometheusExporter.ts
+++ b/packages/opentelemetry-exporter-prometheus/src/PrometheusExporter.ts
@@ -28,7 +28,7 @@ import { PrometheusSerializer } from './PrometheusSerializer';
 import { PrometheusLabelsBatcher } from './PrometheusLabelsBatcher';
 export class PrometheusExporter implements MetricExporter {
   static readonly DEFAULT_OPTIONS = {
-    host: process.env.OTEL_EXPORTER_PROMETHEUS_HOST ?? '0.0.0.0',
+    host: process.env.OTEL_EXPORTER_PROMETHEUS_HOST,
     port: Number(process.env.OTEL_EXPORTER_PROMETHEUS_PORT) ?? 9464,
     endpoint: '/metrics',
     prefix: '',
@@ -157,7 +157,7 @@ export class PrometheusExporter implements MetricExporter {
         },
         () => {
           this._logger.debug(
-            `Prometheus exporter server started: ${this._host}/${this._port}/${this._endpoint}`
+            `Prometheus exporter server started: ${this._host}:${this._port}/${this._endpoint}`
           );
           resolve();
         }
diff --git a/packages/opentelemetry-exporter-prometheus/src/export/types.ts b/packages/opentelemetry-exporter-prometheus/src/export/types.ts
index a60ba6d23f3..ad0e6e03ca9 100644
--- a/packages/opentelemetry-exporter-prometheus/src/export/types.ts
+++ b/packages/opentelemetry-exporter-prometheus/src/export/types.ts
@@ -40,7 +40,7 @@ export interface ExporterConfig {
   endpoint?: string;
 
   /**
-   * @default '0.0.0.0'
+   * @default undefined (all interfaces)
    */
   host?: string;