diff --git a/ModeliRpc.capnp b/ModeliRpc.capnp
index c3994188433f2dfa5a0a2c408bd3e54f0da2d980..f760a1975f2df0c16ea898791036f2f7292d80cf 100644
--- a/ModeliRpc.capnp
+++ b/ModeliRpc.capnp
@@ -38,6 +38,9 @@ interface ModeliBackend {
   
   # Register frontend so we can call the callbacks
   registerFrontend @9 (frontend : ModeliFrontend);
+  
+  # Test the connection
+  ping @10 ();
 }
 
 interface ModeliFrontend {