diff --git a/src/server.tsx b/src/server.tsx
index 6037761..144b08c 100644
--- a/src/server.tsx
+++ b/src/server.tsx
@@ -37,20 +37,17 @@ app.get("/tunnel", c => {
     if (subdomain && connections[subdomain])
         return c.text("subdomain taken", 502)
 
+    const name = subdomain || randomName()
+
     return upgradeWebSocket(c, {
         async onOpen(_event, ws) {
-            const name = subdomain || randomName()
             connections[name] = { app, ws }
             console.log(`connection opened: ${name} -> ${app}`)
             send(ws, { subdomain: name })
         },
         onClose: (_event, ws) => {
-            for (const name of Object.keys(connections))
-                if (connections[name]?.ws === ws) {
-                    console.log("connection closed:", name)
-                    delete connections[name]
-                    break
-                }
+            console.log("connection closed:", name)
+            delete connections[name]
         },
         async onMessage(event, _ws) {
             const msg = JSON.parse(event.data.toString())