diff --git a/lib/zebra.h b/lib/zebra.h
index 997237d..30377fd 100644
--- a/lib/zebra.h
+++ b/lib/zebra.h
@@ -337,7 +337,7 @@
 
 /* AFI and SAFI type. */
 typedef u_int16_t afi_t;
-typedef u_char safi_t;
+typedef u_int8_t safi_t;
 
 /* Zebra types. */
 typedef u_int16_t zebra_size_t;