diff --git a/tunnel-server/src/metrics.ts b/tunnel-server/src/metrics.ts
index 0a318e4f..ad8d05e5 100644
--- a/tunnel-server/src/metrics.ts
+++ b/tunnel-server/src/metrics.ts
@@ -4,7 +4,7 @@ import { Gauge, Counter, register } from 'prom-client'
 export const sshConnectionsGauge = new Gauge({
   name: 'sshConnections',
   help: 'Current number of open SSH connections',
-  labelNames: ['envId'],
+  labelNames: ['clientId'],
 })
 
 export const tunnelsGauge = new Gauge({
diff --git a/tunnel-server/src/ssh/index.ts b/tunnel-server/src/ssh/index.ts
index 270d7e02..7197e2fa 100644
--- a/tunnel-server/src/ssh/index.ts
+++ b/tunnel-server/src/ssh/index.ts
@@ -28,8 +28,8 @@ export const createSshServer = ({
 }) => {
   const onClient = (client: BaseSshClient) => {
     const { clientId, publicKey, envId, connectionId, publicKeyThumbprint, log } = client
-    sshConnectionsGauge.inc({ envId })
-    const cleanupClient = once(() => { sshConnectionsGauge.dec({ envId }) })
+    sshConnectionsGauge.inc({ clientId })
+    const cleanupClient = once(() => { sshConnectionsGauge.dec({ clientId }) })
     const tunnels = new Map<string, string>()
     client
       .on('forward', async (requestId, { path: tunnelPath, access, meta, inject }, localSocketPath, accept, reject) => {