diff --git a/lib.nix b/lib.nix
index 931de7c..23593a8 100644
--- a/lib.nix
+++ b/lib.nix
@@ -35,7 +35,7 @@ let
     attrNames (filterAttrs (_: hostOpts: hostOpts.site == site) entities.hosts);
   getDomainHosts = domain:
     attrNames
-    (filterAttrs (_: hostOpts: hostOpts.domain == domain) entities.domain);
+    (filterAttrs (_: hostOpts: hostOpts.domain == domain) entities.hosts);
 in {
   inherit getHostSite getHostDomain getHostRealm getHostFqdn getHostIpv4
     getHostIpv6 getHostIps getDomainPostgresqlServer getSiteHosts