diff --git a/includes/discovery/functions.inc.php b/includes/discovery/functions.inc.php
index 1b4db40c59..d37c59fb6e 100644
--- a/includes/discovery/functions.inc.php
+++ b/includes/discovery/functions.inc.php
@@ -85,7 +85,7 @@ function discover_device($device, $options = NULL)
   }
 
   echo("\n");
-  
+ 
   // If we've specified a module, use that, else walk the modules array
   if ($options['m'])
   {
@@ -118,8 +118,8 @@ function discover_device($device, $options = NULL)
   }
 
   $device_end = utime(); $device_run = $device_end - $device_start; $device_time = substr($device_run, 0, 5);
-  
-  dbUpdate(array('last_discovered' => 'NOW()', 'type' => $device['type'], 'last_discovered_timetaken' => $device_time), 'devices', '`device_id` = ?', array($device['device_id']));
+
+  dbUpdate(array('last_discovered' => array('NOW()'), 'type' => $device['type'], 'last_discovered_timetaken' => $device_time), 'devices', '`device_id` = ?', array($device['device_id']));
 
   echo("Discovered in $device_time seconds\n");
 
diff --git a/includes/polling/functions.inc.php b/includes/polling/functions.inc.php
index b40a5f18a9..4582426c43 100644
--- a/includes/polling/functions.inc.php
+++ b/includes/polling/functions.inc.php
@@ -223,9 +223,9 @@ function poll_device($device, $options)
       rrdtool_update($ping_rrd, "N:$ping_time");
     }
 
-    $update_array['last_polled'] = 'NOW()';
+    $update_array['last_polled'] = array('NOW()');
     $update_array['last_polled_timetaken'] = $device_time;
-    $update_array['last_ping'] = 'NOW()';
+    $update_array['last_ping'] = array('NOW()');
     $update_array['last_ping_timetaken'] = $ping_time;
 
     #echo("$device_end - $device_start; $device_time $device_run");