diff --git a/modules/servers/atticd.nix b/modules/servers/atticd.nix
index 17bb90e..46d8815 100644
--- a/modules/servers/atticd.nix
+++ b/modules/servers/atticd.nix
@@ -17,7 +17,10 @@ in
       settings = {
         listen = "[::]:${toString cfg.port}";
         jwt = { };
-        database.heartbeat = true; # 5 minutes
+        database = {
+          heartbeat = true;
+          url = "postgresql:///${cfg.name}?host=${config.my.postgresSocket}";
+        };
         chunking = {
           nar-size-threshold = 64 * 1024; # 64 KiB
           min-size = 16 * 1024; # 16 KiB
diff --git a/modules/servers/postgres.nix b/modules/servers/postgres.nix
index 32dba40..4978528 100644
--- a/modules/servers/postgres.nix
+++ b/modules/servers/postgres.nix
@@ -39,6 +39,7 @@ let
     "readeck"
     "sonarqube"
     "gitea"
+    "atticd"
   ];
 in
 {