diff --git a/htdocs/emailcollector/class/emailcollector.class.php b/htdocs/emailcollector/class/emailcollector.class.php
index ada3fc1e4a8..0347f123c74 100644
--- a/htdocs/emailcollector/class/emailcollector.class.php
+++ b/htdocs/emailcollector/class/emailcollector.class.php
@@ -178,7 +178,13 @@ class EmailCollector extends CommonObject
     public $source_directory;
     public $target_directory;
     public $maxemailpercollect;
+    
+    /**
+     * @var integer|string $datelastresult
+     */
     public $datelastresult;
+    
+    
     public $lastresult;
     // END MODULEBUILDER PROPERTIES