diff --git a/modules/netns-isolation.nix b/modules/netns-isolation.nix
index 9d5e164..fa36387 100644
--- a/modules/netns-isolation.nix
+++ b/modules/netns-isolation.nix
@@ -210,8 +210,8 @@ in {
       ];
       rpcallowip = [
         "127.0.0.1"
-      ] ++ lib.lists.concatMap (s: [
-        "${netns.${s}.address}"
+      ] ++ lib.lists.concatMap (n: [
+        "${netns.${n}.address}"
       ]) netns.bitcoind.availableNetns;
       cli = pkgs.writeScriptBin "bitcoin-cli" ''
         netns-exec nb-bitcoind ${config.services.bitcoind.package}/bin/bitcoin-cli -datadir='${config.services.bitcoind.dataDir}' "$@"
@@ -253,8 +253,8 @@ in {
       ];
       rpcallowip = [
         "127.0.0.1"
-      ] ++ lib.lists.concatMap (s: [
-        "${netns.${s}.address}"
+      ] ++ lib.lists.concatMap (n: [
+        "${netns.${n}.address}"
       ]) netns.liquidd.availableNetns;
       mainchainrpchost = netns.bitcoind.address;
       cli = pkgs.writeScriptBin "elements-cli" ''