diff --git a/src/channels/typing.ts b/src/channels/typing.ts
index 531c2fdc485..a7e5c4a35d3 100644
--- a/src/channels/typing.ts
+++ b/src/channels/typing.ts
@@ -20,6 +20,7 @@ export function createTypingCallbacks(params: {
   let closed = false;
 
   const fireStart = async () => {
+    if (closed) return;
     try {
       await params.start();
     } catch (err) {