diff --git a/pandora_console/include/class/Diagnostics.class.php b/pandora_console/include/class/Diagnostics.class.php
index 99e28e3983..02bec5060d 100644
--- a/pandora_console/include/class/Diagnostics.class.php
+++ b/pandora_console/include/class/Diagnostics.class.php
@@ -646,7 +646,7 @@ class Diagnostics extends Wizard
         $currentTime = time();
 
         $pandoraDbLastRun = __('Pandora DB has never been executed');
-        if ($dateDbMantenaince !== false) {
+        if ($dateDbMantenaince !== false && empty($dateDbMantenaince) === false) {
             $difference = ($currentTime - $dateDbMantenaince);
             $pandoraDbLastRun = human_time_description_raw(
                 $difference,