--- a/stage1_2/iec_flex.ll	Sat Mar 15 08:31:35 2014 +0000
+++ b/stage1_2/iec_flex.ll	Sat Mar 15 20:10:20 2014 +0000
@@ -1245,7 +1245,8 @@
 	/******************************************************/
 
 
-REF	{if (get_opt_ref_operator()) return REF; else unput(0);}		/* Keyword in IEC 61131-3 v3 */
+REF	{if (get_opt_ref_operator()) return REF;    else unput(0);}		/* Keyword in IEC 61131-3 v3 */
+REF_TO	{/*if (get_opt_ref_operator()) return REF_TO; else */unput(0);}		/* Keyword in IEC 61131-3 v3 */
 
 EN	return EN;			/* Keyword */
 ENO	return ENO;			/* Keyword */