diff --git a/rustls/README.md b/rustls/README.md
index f93e8963..9febe506 100644
--- a/rustls/README.md
+++ b/rustls/README.md
@@ -4,7 +4,7 @@
 
 ### Certificate
 
-We put the self-signed certificate in this direcotry as an example
+We put the self-signed certificate in this directory as an example
 but your browser would complain that it isn't secure.
 So we recommend to use [`mkcert`] to trust it. To use local CA, you should run: