diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index febf0c9..f34a0a9 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -68,9 +68,7 @@
 	enum symbol_type stype;
 };
 
-#ifdef YYDEBUG
 extern int zconfdebug;
-#endif
 
 int zconfparse(void);
 void zconfdump(FILE *out);
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
index 98c5716..377d04d 100644
--- a/scripts/kconfig/zconf.y
+++ b/scripts/kconfig/zconf.y
@@ -31,10 +31,6 @@
 
 static struct menu *current_menu, *current_entry;
 
-#define YYDEBUG 0
-#if YYDEBUG
-#define YYERROR_VERBOSE
-#endif
 %}
 %expect 30
 
@@ -503,10 +499,8 @@
 	modules_sym->flags |= SYMBOL_AUTO;
 	rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
 
-#if YYDEBUG
 	if (getenv("ZCONF_DEBUG"))
 		zconfdebug = 1;
-#endif
 	zconfparse();
 	if (zconfnerrs)
 		exit(1);
@@ -590,9 +584,7 @@
 
 static void zconferror(const char *err)
 {
-#if YYDEBUG
 	fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
-#endif
 }
 
 static void print_quoted_string(FILE *out, const char *str)