diff --git a/isisd/isis_adjacency.c b/isisd/isis_adjacency.c
index 414885f..a352436 100644
--- a/isisd/isis_adjacency.c
+++ b/isisd/isis_adjacency.c
@@ -396,7 +396,8 @@
       vty_out (vty, "%-13s", adj_state2string (adj->adj_state));
       now = time (NULL);
       if (adj->last_upd)
-	vty_out (vty, "%-9lu", adj->last_upd + adj->hold_time - now);
+        vty_out (vty, "%-9llu",
+                 (unsigned long long)adj->last_upd + adj->hold_time - now);
       else
 	vty_out (vty, "-        ");
       vty_out (vty, "%-10s", snpa_print (adj->snpa));
diff --git a/isisd/isis_spf.c b/isisd/isis_spf.c
index fd93efa..a4cbba6 100644
--- a/isisd/isis_spf.c
+++ b/isisd/isis_spf.c
@@ -1456,8 +1456,8 @@
   assert (area->is_type & level);
 
   if (isis->debugs & DEBUG_SPF_EVENTS)
-    zlog_debug ("ISIS-Spf (%s) L%d SPF schedule called, lastrun %d sec ago",
-                area->area_tag, level, diff);
+    zlog_debug ("ISIS-Spf (%s) L%d SPF schedule called, lastrun %lld sec ago",
+                area->area_tag, level, (long long)diff);
 
   if (spftree->pending)
     return ISIS_OK;
@@ -1476,8 +1476,9 @@
                      area->min_spf_interval[1] - diff);
 
   if (isis->debugs & DEBUG_SPF_EVENTS)
-    zlog_debug ("ISIS-Spf (%s) L%d SPF scheduled %d sec from now",
-                area->area_tag, level, area->min_spf_interval[level-1] - diff);
+    zlog_debug ("ISIS-Spf (%s) L%d SPF scheduled %lld sec from now",
+                area->area_tag, level,
+                (long long)(area->min_spf_interval[level-1] - diff));
 
   spftree->pending = 1;
 
diff --git a/isisd/isisd.c b/isisd/isisd.c
index ce6a262..2431557 100644
--- a/isisd/isisd.c
+++ b/isisd/isisd.c
@@ -1297,8 +1297,8 @@
       vty_out_timestr(vty, spftree->last_run_timestamp);
       vty_out (vty, "%s", VTY_NEWLINE);
 
-      vty_out (vty, "      last run duration : %u msec%s",
-               spftree->last_run_duration, VTY_NEWLINE);
+      vty_out (vty, "      last run duration : %llu msec%s",
+               (unsigned long long)spftree->last_run_duration, VTY_NEWLINE);
 
       vty_out (vty, "      run count         : %d%s",
           spftree->runcount, VTY_NEWLINE);