diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index 998cf4f..ffd42c7 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -65,6 +65,7 @@
 
 enum {
 	S_DEF_USER,		/* main user value */
+	S_DEF_AUTO,
 };
 
 struct symbol {
@@ -97,7 +98,7 @@
 #define SYMBOL_WARNED		0x8000
 #define SYMBOL_DEF		0x10000
 #define SYMBOL_DEF_USER		0x10000
-#define SYMBOL_DEF2		0x20000
+#define SYMBOL_DEF_AUTO		0x20000
 #define SYMBOL_DEF3		0x40000
 #define SYMBOL_DEF4		0x80000