diff --git a/htdocs/core/db/DoliDB.class.php b/htdocs/core/db/DoliDB.class.php
index b05f118b08b..3819e785f68 100644
--- a/htdocs/core/db/DoliDB.class.php
+++ b/htdocs/core/db/DoliDB.class.php
@@ -160,10 +160,10 @@ abstract class DoliDB implements Database
 	}
 
 	/**
-	 *	Annulation d'une transaction et retour aux anciennes valeurs
+	 *	Cancel a transaction and go back to initial data values
 	 *
 	 * 	@param	string			$log		Add more log to default log line
-	 * 	@return	resource|int         		1 si annulation ok ou transaction non ouverte, 0 en cas d'erreur
+	 * 	@return	resource|int         		1 if cancelation is ok or transaction not open, 0 if error
 	 */
     public function rollback($log = '')
 	{
diff --git a/htdocs/debugbar/class/TraceableDB.php b/htdocs/debugbar/class/TraceableDB.php
index 4d34da61465..4edc39a74af 100644
--- a/htdocs/debugbar/class/TraceableDB.php
+++ b/htdocs/debugbar/class/TraceableDB.php
@@ -274,10 +274,10 @@ class TraceableDB extends DoliDB
 	}
 
 	/**
-	 * Annulation d'une transaction et retour aux anciennes valeurs
+	 *	Cancel a transaction and go back to initial data values
 	 *
-	 * @param	string $log Add more log to default log line
-	 * @return  int                1 si annulation ok ou transaction non ouverte, 0 en cas d'erreur
+	 * 	@param	string			$log		Add more log to default log line
+	 * 	@return	resource|int         		1 if cancelation is ok or transaction not open, 0 if error
 	 */
 	public function rollback($log = '')
 	{