diff --git a/core/cmdbsource.class.inc.php b/core/cmdbsource.class.inc.php
index cfb0cbd9e..f77d024cb 100644
--- a/core/cmdbsource.class.inc.php
+++ b/core/cmdbsource.class.inc.php
@@ -790,14 +790,14 @@ class CMDBSource
 	private static function StartTransaction()
 	{
 		$aStackTrace = debug_backtrace(DEBUG_BACKTRACE_PROVIDE_OBJECT , 3);
-		$sCaller = 'From '.$aStackTrace[1]['file'].'('.$aStackTrace[1]['line'].'): '.$aStackTrace[2]['class'].'->'.$aStackTrace[2]['function'].'()';
+
 		$bHasExistingTransactions = self::IsInsideTransaction();
 		if (!$bHasExistingTransactions)
 		{
-			IssueLog::Trace("START TRANSACTION $sCaller", 'cmdbsource');
+			IssueLog::Trace("START TRANSACTION was sent to the DB", LogChannels::CMDBSOURCE, ['stacktrace' => $aStackTrace]);
 			self::DBQuery('START TRANSACTION');
 		} else {
-			IssueLog::Trace("Ignore nested (".self::$m_iTransactionLevel.") START TRANSACTION $sCaller", 'cmdbsource');
+			IssueLog::Trace("START TRANSACTION ignored as a transaction is already opened", LogChannels::CMDBSOURCE, ['stacktrace' => $aStackTrace]);
 		}
 
 		self::AddTransactionLevel();
diff --git a/core/log.class.inc.php b/core/log.class.inc.php
index 739db5082..a7f7e07f1 100644
--- a/core/log.class.inc.php
+++ b/core/log.class.inc.php
@@ -539,10 +539,11 @@ class FileLog
  */
 class LogChannels
 {
+	const APC = 'apc';
+	const CMDBSOURCE = 'cmdbsource';
 	const DEADLOCK = 'DeadLock';
 	const INLINE_IMAGE = 'InlineImage';
 	const PORTAL = 'portal';
-	const APC = 'apc';
 }