diff --git a/nixos/modules/services/monitoring/prometheus/exporters/kea.nix b/nixos/modules/services/monitoring/prometheus/exporters/kea.nix
index 27aeb9096243..e0ee90d9b97d 100644
--- a/nixos/modules/services/monitoring/prometheus/exporters/kea.nix
+++ b/nixos/modules/services/monitoring/prometheus/exporters/kea.nix
@@ -25,6 +25,10 @@ in {
     };
   };
   serviceOpts = {
+    after = [
+      "kea-dhcp4-server.service"
+      "kea-dhcp6-server.service"
+    ];
     serviceConfig = {
       User = "kea";
       ExecStart = ''