diff --git a/lib/zebra.h b/lib/zebra.h
index a34f5d4..b771b56 100644
--- a/lib/zebra.h
+++ b/lib/zebra.h
@@ -28,9 +28,6 @@
 #ifdef SUNOS_5
 #define _XPG4_2
 #define __EXTENSIONS__
-typedef unsigned int u_int32_t; 
-typedef unsigned short u_int16_t; 
-typedef unsigned short u_int8_t; 
 #endif /* SUNOS_5 */
 
 #ifndef HAVE_SOCKLEN_T