diff --git a/docs/examples.mDNS.rst b/docs/examples.mDNS.rst
index 40639844..d6ec6aaf 100644
--- a/docs/examples.mDNS.rst
+++ b/docs/examples.mDNS.rst
@@ -1,5 +1,5 @@
 mDNS Peer Discovery Example
-==========================
+===========================
 
 This example demonstrates how to use mDNS (Multicast DNS) for peer discovery in py-libp2p.