diff --git a/inventories/default.nix b/inventories/default.nix
index 38ce2a7..b50f478 100644
--- a/inventories/default.nix
+++ b/inventories/default.nix
@@ -42,6 +42,10 @@
           "rigel"
           "vega"
         ];
+        prometheus = [
+          "rigel"
+          "vega"
+        ];
       };
 
       instances = {