diff --git a/zebra/main.c b/zebra/main.c
index 5b5265f..50ac224 100644
--- a/zebra/main.c
+++ b/zebra/main.c
@@ -104,7 +104,7 @@
   .vty_group = VTY_GROUP,
 #endif
   .caps_p = _caps_p,
-  .cap_num_p = sizeof(_caps_p)/sizeof(_caps_p[0]),
+  .cap_num_p = array_size(_caps_p),
   .cap_num_i = 0
 };
 
@@ -313,7 +313,7 @@
   zprivs_init (&zserv_privs);
 
   /* Vty related initialize. */
-  signal_init (zebrad.master, Q_SIGC(zebra_signals), zebra_signals);
+  signal_init (zebrad.master, array_size(zebra_signals), zebra_signals);
   cmd_init (1);
   vty_init (zebrad.master);
   memory_init ();
diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c
index 15475e2..ab28ad2 100644
--- a/zebra/rt_netlink.c
+++ b/zebra/rt_netlink.c
@@ -1985,7 +1985,7 @@
   };
 
   struct sock_fprog prog = {
-    .len = sizeof(filter) / sizeof(filter[0]),
+    .len = array_size(filter),
     .filter = filter,
   };
 
diff --git a/zebra/test_main.c b/zebra/test_main.c
index 70a1a3a..a951863 100644
--- a/zebra/test_main.c
+++ b/zebra/test_main.c
@@ -280,7 +280,7 @@
   zebrad.master = thread_master_create ();
 
   /* Vty related initialize. */
-  signal_init (zebrad.master, Q_SIGC(zebra_signals), zebra_signals);
+  signal_init (zebrad.master, array_size(zebra_signals), zebra_signals);
   cmd_init (1);
   vty_init (zebrad.master);
   memory_init ();
diff --git a/zebra/zebra_rib.c b/zebra/zebra_rib.c
index b8a4703..0e29e61 100644
--- a/zebra/zebra_rib.c
+++ b/zebra/zebra_rib.c
@@ -1546,7 +1546,7 @@
   /* Set default distance by route type. */
   if (distance == 0)
     {
-      if ((unsigned)type >= sizeof(route_info) / sizeof(route_info[0]))
+      if ((unsigned)type >= array_size(route_info))
 	distance = 150;
       else
         distance = route_info[type].distance;