diff --git a/design/privatefooter.php b/design/privatefooter.php
index 2882540..c9d353a 100755
--- a/design/privatefooter.php
+++ b/design/privatefooter.php
@@ -24,7 +24,7 @@
 <?  if (!empty($LastActive)) { ?>
   <p>
     <a href="user.php?action=sessions">
-      <span class="tooltip" title="Manage sessions">Last activity: </span><?=time_diff($LastActive['LastUpdate'])?><span class="tooltip" title="Manage sessions"> from <?=(apc_exists('DBKEY')?(DBCrypt::decrypt($LastActive['IP'])):'[Encrypted]') ?></span>
+      <span class="tooltip" title="Manage sessions">Last activity: </span><?=time_diff($LastActive['LastUpdate'])?><span class="tooltip" title="Manage sessions"> from <?=(apcu_exists('DBKEY')?(DBCrypt::decrypt($LastActive['IP'])):'[Encrypted]') ?></span>
     </a>
   </p>
 <?  } ?>
diff --git a/design/privateheader.php b/design/privateheader.php
index 9dcad5b..5d06917 100755
--- a/design/privateheader.php
+++ b/design/privateheader.php
@@ -538,7 +538,7 @@ if (!empty($Alerts) || !empty($ModBar)) { ?>
           <?=implode(' | ', $ModBar); echo "\n"?>
         </div>
 <?  }
-if (check_perms('site_debug') && !apc_exists('DBKEY')) { ?>
+if (check_perms('site_debug') && !apcu_exists('DBKEY')) { ?>
         <div class="alertbar" style="color: white; background: #B53939;">
           Warning: <a href="tools.php?action=database_key">no DB key</a>
         </div>