diff --git a/services/monitoring/agent.nix b/services/monitoring/agent.nix
index dd1e95f..3fc2e0d 100644
--- a/services/monitoring/agent.nix
+++ b/services/monitoring/agent.nix
@@ -41,6 +41,7 @@ in
               };
             }
           ];
+          global.external_labels.hostname = config.networking.hostName;
           configs = [
             {
               name = config.networking.hostName;