diff --git a/library/Icingadb/Widget/ItemList/StateListItem.php b/library/Icingadb/Widget/ItemList/StateListItem.php
index 63ddcf56..5ff47256 100644
--- a/library/Icingadb/Widget/ItemList/StateListItem.php
+++ b/library/Icingadb/Widget/ItemList/StateListItem.php
@@ -99,7 +99,7 @@ abstract class StateListItem extends BaseListItem
             $since->prepend(t('Overdue') . ' ');
             $since->prependHtml(new Icon(Icons::WARNING));
             return $since;
-        } elseif ($this->state->last_state_change !== null) {
+        } elseif ($this->state->last_state_change > 0) {
             return new TimeSince($this->state->last_state_change);
         }
     }