"Compiling" version
diff --git a/Parser/grammar1.c b/Parser/grammar1.c
index 0cd66af..6c10158 100644
--- a/Parser/grammar1.c
+++ b/Parser/grammar1.c
@@ -1,7 +1,6 @@
 /* Grammar subroutines needed by parser */
 
-#include "PROTO.h"
-#define NULL 0
+#include "pgenheaders.h"
 #include "assert.h"
 #include "grammar.h"
 #include "token.h"