diff --git a/snappymail/v/0.0.0/app/libraries/MailSo/Imap/SearchCriterias.php b/snappymail/v/0.0.0/app/libraries/MailSo/Imap/SearchCriterias.php
index 31f09ec54..b2ce499d5 100644
--- a/snappymail/v/0.0.0/app/libraries/MailSo/Imap/SearchCriterias.php
+++ b/snappymail/v/0.0.0/app/libraries/MailSo/Imap/SearchCriterias.php
@@ -280,7 +280,7 @@ abstract class SearchCriterias
 		}
 
 		if ($bHideDeleted && !\in_array('DELETED', $aCriteriasResult) && !\in_array('UNDELETED', $aCriteriasResult)) {
-			$aCriteriasResult['UNDELETED'] = true;
+			$aCriteriasResult[] = 'UNDELETED';
 		}
 
 		if (\MailSo\Config::$MessageListPermanentFilter) {
diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/Messages.php b/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/Messages.php
index 7aaeab620..6cb11dea7 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/Messages.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/Messages.php
@@ -74,7 +74,7 @@ trait Messages
 
 			$oSettingsLocal = $this->SettingsProvider(true)->Load($oAccount);
 			if ($oSettingsLocal instanceof \RainLoop\Settings) {
-				$oParams->bHideDeleted = empty($oSettingsLocal->GetConf('HideDeleted', 1));
+				$oParams->bHideDeleted = !empty($oSettingsLocal->GetConf('HideDeleted', 1));
 			}
 
 			$oMessageList = $this->MailClient()->MessageList($oParams);