diff --git a/modules/netns-isolation.nix b/modules/netns-isolation.nix
index bc869ec..f344bf4 100644
--- a/modules/netns-isolation.nix
+++ b/modules/netns-isolation.nix
@@ -297,6 +297,7 @@ in {
         id = 31;
         connections = [ "bitcoind" ];
       };
+      # id = 32 reserved for the upcoming mempool module
     };
 
     services.bitcoind = {