diff --git a/doh-client/doh-client.conf b/doh-client/doh-client.conf
index ba69ebe..0d802a8 100644
--- a/doh-client/doh-client.conf
+++ b/doh-client/doh-client.conf
@@ -4,6 +4,9 @@ listen = [
     "127.0.0.1:5380",
     "[::1]:53",
     "[::1]:5380",
+
+    ## To listen on both 0.0.0.0:53 and [::]:53, use the following line
+    # ":53",
 ]
 
 # HTTP path for upstream resolver
diff --git a/doh-server/doh-server.conf b/doh-server/doh-server.conf
index eaa7f53..0fed8d9 100644
--- a/doh-server/doh-server.conf
+++ b/doh-server/doh-server.conf
@@ -2,6 +2,9 @@
 listen = [
     "127.0.0.1:8053",
     "[::1]:8053",
+
+    ## To listen on both 0.0.0.0:8053 and [::]:8053, use the following line
+    # ":8053",
 ]
 
 # Local address and port for upstream DNS