From b790e41f1251b75a45fefe3a0c132edd3f3b9fad Mon Sep 17 00:00:00 2001
From: John Lotoski <john.lotoski@iohk.io>
Date: Thu, 27 Feb 2025 14:45:57 -0600
Subject: [PATCH] nixos node svc: use topology.json vs yaml for consistency w/
 other cfgs

---
 nix/nixos/cardano-node-service.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nix/nixos/cardano-node-service.nix b/nix/nixos/cardano-node-service.nix
index fbc55f42aa5..25402447ba2 100644
--- a/nix/nixos/cardano-node-service.nix
+++ b/nix/nixos/cardano-node-service.nix
@@ -56,7 +56,7 @@ let
   selectTopology = i:
     if cfg.topology != null
     then cfg.topology
-    else toFile "topology.yaml" (toJSON (if (cfg.useNewTopology) then assertNewTopology i else oldTopology i));
+    else toFile "topology.json" (toJSON (if (cfg.useNewTopology) then assertNewTopology i else oldTopology i));
 
   topology = i:
     if cfg.useSystemdReload