diff --git a/machine.capnp b/machine.capnp
index 173c263..8d1ae39 100644
--- a/machine.capnp
+++ b/machine.capnp
@@ -65,6 +65,11 @@ struct Machine {
         releasefortakeover @2 ();
     }
 
+    prodable @16 :Prodable;
+    interface Prodable $CSharp.name("ProdInterface") {
+        prodWithData @0 (data :Data);
+    }
+
     takeover @9 :Takeover;
     interface Takeover $CSharp.name("TakeoverInterface") {
         accept @0 ();