"Compiling" version
diff --git a/Parser/pgen.h b/Parser/pgen.h
index 7fcf277..45eb2ed 100644
--- a/Parser/pgen.h
+++ b/Parser/pgen.h
@@ -3,4 +3,4 @@
 extern grammar gram;
 
 extern grammar *meta_grammar PROTO((void));
-extern grammar *pgen PROTO((node *));
+extern grammar *pgen PROTO((struct _node *));