diff --git a/nix/host-modules/swarm-required-services.nix b/nix/host-modules/swarm-required-services.nix
index 480ce56e..81b2c779 100644
--- a/nix/host-modules/swarm-required-services.nix
+++ b/nix/host-modules/swarm-required-services.nix
@@ -71,4 +71,8 @@ in
     victoriametrics.enable = lib.mkDefault swarmCfg.enableRequiredServices;
     grafana.enable = lib.mkDefault swarmCfg.enableRequiredServices;
   };
+
+  # The collector that feeds the pair above (note: no `swarm.` prefix,
+  # this is ./otel.nix's existing per-hive option).
+  config.services.hyperhive.otel.enable = lib.mkDefault swarmCfg.enableRequiredServices;
 }