diff --git a/nix-system-configs/modules/system/database.nix b/nix-system-configs/modules/system/database.nix
index 2897cee..c6dd54e 100644
--- a/nix-system-configs/modules/system/database.nix
+++ b/nix-system-configs/modules/system/database.nix
@@ -134,19 +134,17 @@ in {
     };
 
     # Provide the Valkey config file at /etc/valkey/6379.conf
-    environment.etc = lib.mkOverride 0 (lib.attrsets.union environment.etc {
-      "valkey/6379.conf" = {
-        text = ''
-          # Valkey configuration managed by NixOS
-          daemonize yes
-          pidfile /var/run/valkey_6379.pid
-          port 6379
-          loglevel notice
-          logfile /var/log/valkey_6379.log
-          dir /var/valkey/6379
-        '';
-      };
-    });
+    environment.etc."valkey/6379.conf" = {
+      text = ''
+        # Valkey configuration managed by NixOS
+        daemonize yes
+        pidfile /var/run/valkey_6379.pid
+        port 6379
+        loglevel notice
+        logfile /var/log/valkey_6379.log
+        dir /var/valkey/6379
+      '';
+    };
 
     # Create data and log directories using systemd tmpfiles rules so paths exist on boot
     systemd.tmpfiles.rules = lib.mkForce [