From 7e7e254328d13445605e0f3db019ab079bc80a25 Mon Sep 17 00:00:00 2001
From: Maurus Decimus <11444311+mdecimus@users.noreply.github.com>
Date: Sun, 28 Jun 2026 18:53:45 +0200
Subject: [PATCH] Fix Prometheus: event counters are exported with incorrect
 metric names

---
 CHANGELOG.md                  | 1 +
 crates/trc/src/ipc/metrics.rs | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8c744d2..e2c30025 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ If you are upgrading from v0.16.x, replace the binary (or run `docker pull`). If
 - DANE: Treat DNSSEC `bogus` as a temporary failures to prevent downgrade attacks.
 - OIDC: `ECDSA` private key support for `SEC1` format.
 - PostgreSQL: Include error chain in error messages.
+- Prometheus: event counters are exported with incorrect metric names.
 
 ## [0.16.11] - 2026-06-25
 
diff --git a/crates/trc/src/ipc/metrics.rs b/crates/trc/src/ipc/metrics.rs
index e87ac052..bef53026 100644
--- a/crates/trc/src/ipc/metrics.rs
+++ b/crates/trc/src/ipc/metrics.rs
@@ -8,7 +8,7 @@ use std::sync::atomic::Ordering;
 
 use atomics::{array::AtomicU32Array, gauge::AtomicGauge, histogram::AtomicHistogram};
 use ipc::{
-    collector::{Collector, EVENT_TYPES, GlobalInterests},
+    collector::{Collector, GlobalInterests},
     subscriber::Interests,
 };
 
@@ -216,7 +216,7 @@ impl Collector {
                 let value = value.load(Ordering::Relaxed);
                 if value > 0 {
                     Some(EventCounter {
-                        id: EVENT_TYPES[event_id],
+                        id: EventType::from_id(event_id as u16)?,
                         value,
                     })
                 } else {