diff --git a/README.md b/README.md
index cbbc541e..1edacbe9 100644
--- a/README.md
+++ b/README.md
@@ -347,7 +347,7 @@ Example configuration:
     // Value could be IP address of DNS server, for example, "8.8.8.8".
     // DNS client will automatically request port 53 with both TCP and UDP protocol.
     //
-    // It also allows some pre-defined will-known public DNS servers:
+    // It also allows some pre-defined well-known public DNS servers:
     // - google (TCP, UDP)
     // - cloudflare (TCP, UDP)
     // - cloudflare_tls (TLS), enable by feature "dns-over-tls"