diff --git a/ospf6d/ospf6_zebra.c b/ospf6d/ospf6_zebra.c
index 7083c96..0a8ac3e 100644
--- a/ospf6d/ospf6_zebra.c
+++ b/ospf6d/ospf6_zebra.c
@@ -134,8 +134,9 @@
   ifp = zebra_interface_state_read (zclient->ibuf);
   if (IS_OSPF6_DEBUG_ZEBRA (RECV))
     zlog_debug ("Zebra Interface state change: "
-                "%s index %d flags %ld metric %d mtu %d",
-		ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu6);
+                "%s index %d flags %llx metric %d mtu %d",
+		ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, 
+		ifp->metric, ifp->mtu6);
 
   ospf6_interface_state_update (ifp);
   return 0;
diff --git a/ospfd/ospf_zebra.c b/ospfd/ospf_zebra.c
index 150ffac..8f624a4 100644
--- a/ospfd/ospf_zebra.c
+++ b/ospfd/ospf_zebra.c
@@ -91,8 +91,9 @@
   ifp = zebra_interface_add_read (zclient->ibuf);
 
   if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
-    zlog_debug ("Zebra: interface add %s index %d flags %ld metric %d mtu %d",
-               ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
+    zlog_debug ("Zebra: interface add %s index %d flags %llx metric %d mtu %d",
+               ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
+               ifp->metric, ifp->mtu);
 
   assert (ifp->info);
 
@@ -132,7 +133,7 @@
 
   if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
     zlog_debug
-      ("Zebra: interface delete %s index %d flags %ld metric %d mtu %d",
+      ("Zebra: interface delete %s index %d flags %lld metric %d mtu %d",
        ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
 
 #ifdef HAVE_SNMP
diff --git a/ripd/rip_interface.c b/ripd/rip_interface.c
index 827663a..4f80bf4 100644
--- a/ripd/rip_interface.c
+++ b/ripd/rip_interface.c
@@ -402,8 +402,9 @@
   rip_if_down(ifp);
  
   if (IS_RIP_DEBUG_ZEBRA)
-    zlog_debug ("interface %s index %d flags %ld metric %d mtu %d is down",
-	       ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
+    zlog_debug ("interface %s index %d flags %llx metric %d mtu %d is down",
+	       ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
+	       ifp->metric, ifp->mtu);
 
   return 0;
 }
@@ -422,7 +423,7 @@
     return 0;
 
   if (IS_RIP_DEBUG_ZEBRA)
-    zlog_debug ("interface %s index %d flags %ld metric %d mtu %d is up",
+    zlog_debug ("interface %s index %d flags %lld metric %d mtu %d is up",
 	       ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
 
   /* Check if this interface is RIP enabled or not.*/
@@ -446,7 +447,7 @@
   ifp = zebra_interface_add_read (zclient->ibuf);
 
   if (IS_RIP_DEBUG_ZEBRA)
-    zlog_debug ("interface add %s index %d flags %ld metric %d mtu %d",
+    zlog_debug ("interface add %s index %d flags %lld metric %d mtu %d",
 	       ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
 
   /* Check if this interface is RIP enabled or not.*/
@@ -485,7 +486,7 @@
     rip_if_down(ifp);
   } 
   
-  zlog_info("interface delete %s index %d flags %ld metric %d mtu %d",
+  zlog_info("interface delete %s index %d flags %lld metric %d mtu %d",
 	    ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);  
   
   /* To support pseudo interface do not free interface structure.  */
diff --git a/ripngd/ripng_interface.c b/ripngd/ripng_interface.c
index d70c299..c23d32a 100644
--- a/ripngd/ripng_interface.c
+++ b/ripngd/ripng_interface.c
@@ -243,8 +243,9 @@
     return 0;
 
   if (IS_RIPNG_DEBUG_ZEBRA)
-    zlog_debug ("interface up %s index %d flags %ld metric %d mtu %d",
-	       ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu6);
+    zlog_debug ("interface up %s index %d flags %llx metric %d mtu %d",
+	       ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
+	       ifp->metric, ifp->mtu6);
 
   /* Check if this interface is RIPng enabled or not. */
   ripng_enable_apply (ifp);
@@ -276,7 +277,7 @@
   ripng_if_down (ifp);
 
   if (IS_RIPNG_DEBUG_ZEBRA)
-    zlog_debug ("interface down %s index %d flags %ld metric %d mtu %d",
+    zlog_debug ("interface down %s index %d flags %lld metric %d mtu %d",
 	       ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu6);
 
   return 0;
@@ -291,7 +292,7 @@
   ifp = zebra_interface_add_read (zclient->ibuf);
 
   if (IS_RIPNG_DEBUG_ZEBRA)
-    zlog_debug ("RIPng interface add %s index %d flags %ld metric %d mtu %d",
+    zlog_debug ("RIPng interface add %s index %d flags %lld metric %d mtu %d",
 	       ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu6);
 
   /* Check is this interface is RIP enabled or not.*/
@@ -324,7 +325,7 @@
     ripng_if_down(ifp);
   }
 
-  zlog_info("interface delete %s index %d flags %ld metric %d mtu %d",
+  zlog_info("interface delete %s index %d flags %lld metric %d mtu %d",
             ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu6);
 
   /* To support pseudo interface do not free interface structure.  */