diff --git a/include/constants.php b/include/constants.php
index f437147a..251e8456 100644
--- a/include/constants.php
+++ b/include/constants.php
@@ -1,6 +1,6 @@
 <?php
 defined('VERSION_NUMBER') || define('VERSION_NUMBER', '1.8.7');
-defined('RELEASE_DATE') || define('RELEASE_DATE', '2023-09-21');
+defined('RELEASE_DATE') || define('RELEASE_DATE', '2023-09-22');
 defined('IN_TRACKER') || define('IN_TRACKER', false);
 defined('PROJECTNAME') || define("PROJECTNAME","NexusPHP");
 defined('NEXUSPHPURL') || define("NEXUSPHPURL","https://nexusphp.org");
diff --git a/public/messages.php b/public/messages.php
index ecd6d6bc..c4061fe2 100644
--- a/public/messages.php
+++ b/public/messages.php
@@ -302,6 +302,9 @@ if ($_POST['markread'])
 	}
 	else
 	{
+        if (empty($pm_messages)) {
+            stderr('Error', $lang_functions['select_at_least_one_record']);
+        }
 // Mark multiple messages as read
 	@sql_query("UPDATE messages SET unread='no' WHERE id IN (" . implode(", ", array_map("sqlesc",$pm_messages)) . ") AND receiver=" .$CURUSER['id']);
 	}