diff --git a/core/log.class.inc.php b/core/log.class.inc.php
index a14ace76f..33a32a9fc 100644
--- a/core/log.class.inc.php
+++ b/core/log.class.inc.php
@@ -542,7 +542,12 @@ abstract class LogAPI
 	const LEVEL_OK          = 'Ok';
 	const LEVEL_DEBUG       = 'Debug';
 	const LEVEL_TRACE       = 'Trace';
-	const LEVEL_DEFAULT     = self::LEVEL_TRACE;
+	/**
+	 * @var string default log level, can be overrided
+	 * @see GetMinLogLevel
+	 * @since 2.7.1 N°2977
+	 */
+	const LEVEL_DEFAULT     = self::LEVEL_OK;
 
 	protected static $aLevelsPriority = array(
 		self::LEVEL_ERROR   => 400,
@@ -640,21 +645,22 @@ abstract class LogAPI
 	/**
 	 * @param $sChannel
 	 *
-	 * @return mixed|null
+	 * @return string one of the LEVEL_* const value
+	 * @uses LEVEL_DEFAULT
 	 */
 	private static function GetMinLogLevel($sChannel)
 	{
 		$oConfig = (static::$m_oMockMetaModelConfig !== null) ? static::$m_oMockMetaModelConfig :  \MetaModel::GetConfig();
 		if (!$oConfig instanceof Config)
 		{
-			return self::LEVEL_DEFAULT;
+			return static::LEVEL_DEFAULT;
 		}
 
 		$sLogLevelMin = $oConfig->Get('log_level_min');
 
 		if (empty($sLogLevelMin))
 		{
-			return self::LEVEL_DEFAULT;
+			return static::LEVEL_DEFAULT;
 		}
 
 		if (!is_array($sLogLevelMin))
@@ -672,7 +678,7 @@ abstract class LogAPI
 			return $sLogLevelMin[$sChannel];
 		}
 
-		return self::LEVEL_DEFAULT;
+		return static::LEVEL_DEFAULT;
 	}
 
 }