diff --git a/htdocs/core/lib/admin.lib.php b/htdocs/core/lib/admin.lib.php
index 705cf304460..cf3b925b771 100644
--- a/htdocs/core/lib/admin.lib.php
+++ b/htdocs/core/lib/admin.lib.php
@@ -1087,7 +1087,7 @@ function purgeSessions($mysessionid)
 					$sessValues = file_get_contents($fullpath); // get raw session data
 
 					if (preg_match('/dol_login/i', $sessValues) && // limit to dolibarr session
-					preg_match('/dol_entity\|s:([0-9]+):"('.$conf->entity.')"/i', $sessValues) && // limit to current entity
+					(preg_match('/dol_entity\|i:('.$conf->entity.')/', $sessValues) || preg_match('/dol_entity\|s:([0-9]+):"('.$conf->entity.')"/i', $sessValues)) && // limit to current entity
 					preg_match('/dol_company\|s:([0-9]+):"(' . getDolGlobalString('MAIN_INFO_SOCIETE_NOM').')"/i', $sessValues)) { // limit to company name
 						$tmp = explode('_', $file);
 						$idsess = $tmp[1];