X-Git-Url: http://nitlanguage.org

diff --git a/lib/nitcc_runtime.nit b/lib/nitcc_runtime.nit
index 923ef18..b413c7e 100644
--- a/lib/nitcc_runtime.nit
+++ b/lib/nitcc_runtime.nit
@@ -494,7 +494,7 @@ class Nodes[T: Node]
 end
 
 # A production with a specific, named and statically typed children
-class NProd
+abstract class NProd
 	super Node
 	redef var children: SequenceRead[nullable Node] = new NProdChildren(self)