From 61cdbc0968ecc22f00d615ca129df39d5de30a21 Mon Sep 17 00:00:00 2001
From: Rodrigo Mesquita <30835404+rrmesquita@users.noreply.github.com>
Date: Mon, 15 Jun 2026 00:22:45 -0300
Subject: [PATCH] use plain metric name when prefix is empty

---
 src/collectors/collector.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/collectors/collector.ts b/src/collectors/collector.ts
index 5386aab..1dc1b14 100644
--- a/src/collectors/collector.ts
+++ b/src/collectors/collector.ts
@@ -43,6 +43,10 @@ export abstract class Collector {
       ? this.commonOptions.metricsPrefix.slice(0, -1)
       : this.commonOptions.metricsPrefix
 
+    if (!prefix.length) {
+      return name
+    }
+
     return [prefix, name].join('_')
   }