diff --git a/zebra/interface.h b/zebra/interface.h
index 0777a2f..7a05348 100644
--- a/zebra/interface.h
+++ b/zebra/interface.h
@@ -34,9 +34,8 @@
 #define IF_ZEBRA_MULTICAST_OFF    2
 
 /* For interface shutdown configuration. */
-#define IF_ZEBRA_SHUTDOWN_UNSPEC 0
+#define IF_ZEBRA_SHUTDOWN_OFF    0
 #define IF_ZEBRA_SHUTDOWN_ON     1
-#define IF_ZEBRA_SHUTDOWN_OFF    2
 
 /* Router advertisement feature. */
 #if (defined(LINUX_IPV6) && (defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1)) || defined(KAME)