diff --git a/zebra/if_netlink.c b/zebra/if_netlink.c
index c9c1476..701c81b 100644
--- a/zebra/if_netlink.c
+++ b/zebra/if_netlink.c
@@ -22,12 +22,11 @@
 
 #include <zebra.h>
 
-/* Extern from rt_netlink.c */  
-void interface_lookup_netlink ();  
+extern int interface_lookup_netlink (void);
 
 /* Interface information read by netlink. */
 void
-interface_list ()
+interface_list (void)
 {
   interface_lookup_netlink ();  
 }
diff --git a/zebra/rtread_netlink.c b/zebra/rtread_netlink.c
index 0b255a5..44715d9 100644
--- a/zebra/rtread_netlink.c
+++ b/zebra/rtread_netlink.c
@@ -21,11 +21,9 @@
  */
 
 #include <zebra.h>
+extern void netlink_route_read (void);
 
-/* Extern from rt_netlink.c */
-void netlink_route_read ();
-
-void route_read ()
+void route_read (void)
 {
   netlink_route_read ();
 }