diff --git a/lass/1systems/prism.nix b/lass/1systems/prism.nix
index 5da66d265..555e7fe1a 100644
--- a/lass/1systems/prism.nix
+++ b/lass/1systems/prism.nix
@@ -229,6 +229,9 @@ in {
         enable = true;
       };
     }
+    {
+      virtualisation.libvirtd.enable = true;
+    }
   ];
 
   krebs.build.host = config.krebs.hosts.prism;