diff --git a/doc/notfound.md b/doc/notfound.md
index e18a57a..f5447a6 100644
--- a/doc/notfound.md
+++ b/doc/notfound.md
@@ -1,6 +1,6 @@
 [⬅️ Back to `index`](index.md)
 
-# Unknwon command
+# Unknown command
 
 The Unknown Command reply (421, ERR_UNKNOWNCOMMAND in RFC 1459) is when the server doesn't recognise a command a client sends.