diff --git a/reverse-zone.nix b/reverse-zone.nix
index 3465515..f2c1dde 100644
--- a/reverse-zone.nix
+++ b/reverse-zone.nix
@@ -38,7 +38,7 @@ let
       ptrEntry = ip: hostname: "#{ip} IN PTR ${hostname}.";
       getHostname = n:
         if hasAttr n networkHostsByComponent then
-          networkHostByComponent n
+          networkHostsByComponent."${n}"
         else
           "unassigned-${n}.${domain}";
       minIp = toInt (getLastIpComponent (networkMinIp network));