diff --git a/libs/common/src/metrics/api.metrics.controller.ts b/libs/common/src/metrics/api.metrics.controller.ts
index cd9fec6..c150494 100644
--- a/libs/common/src/metrics/api.metrics.controller.ts
+++ b/libs/common/src/metrics/api.metrics.controller.ts
@@ -1,13 +1,15 @@
-import { Controller, Get } from "@nestjs/common";
-import { ApiMetricsService } from "./api.metrics.service";
+import { Controller, Get, Header } from '@nestjs/common';
+import { ApiMetricsService } from './api.metrics.service';
+import { register } from 'prom-client';
 
 @Controller()
 export class ApiMetricsController {
   constructor(
-    private readonly metricsService: ApiMetricsService
+    private readonly metricsService: ApiMetricsService,
   ) { }
 
-  @Get("/metrics")
+  @Get('/metrics')
+  @Header('Content-Type', register.contentType)
   async getMetrics(): Promise<string> {
     return await this.metricsService.getMetrics();
   }