diff --git a/htdocs/core/modules/syslog/mod_syslog_chromephp.php b/htdocs/core/modules/syslog/mod_syslog_chromephp.php
index a9b9ccd5836..7523588ac15 100644
--- a/htdocs/core/modules/syslog/mod_syslog_chromephp.php
+++ b/htdocs/core/modules/syslog/mod_syslog_chromephp.php
@@ -121,13 +121,14 @@ class mod_syslog_chromephp extends LogHandler implements LogHandlerInterface
 
 		if (! file_exists($conf->global->SYSLOG_CHROMEPHP_INCLUDEPATH.'/ChromePhp.php') && ! file_exists($conf->global->SYSLOG_CHROMEPHP_INCLUDEPATH.'/ChromePhp.class.php'))
 		{
+			$conf->global->MAIN_SYSLOG_DISABLE_CHROMEPHP = 1; // avoid infinite loop
 			if (is_object($langs))   // $langs may not be defined yet.
 			{
-			    $errors[] = $langs->trans("ErrorFailedToOpenFile", 'ChromePhp.class.php or ChromePhp.php');
+				$errors[] = $langs->trans("ErrorFailedToOpenFile", 'ChromePhp.class.php or ChromePhp.php');
 			}
 			else
 			{
-		        $errors[] = "ErrorFailedToOpenFile ChromePhp.class.php or ChromePhp.php";
+				$errors[] = "ErrorFailedToOpenFile ChromePhp.class.php or ChromePhp.php";
 			}
 		}
 
diff --git a/htdocs/core/modules/syslog/mod_syslog_firephp.php b/htdocs/core/modules/syslog/mod_syslog_firephp.php
index 69bc98230af..f502022c4f6 100644
--- a/htdocs/core/modules/syslog/mod_syslog_firephp.php
+++ b/htdocs/core/modules/syslog/mod_syslog_firephp.php
@@ -122,7 +122,15 @@ class mod_syslog_firephp extends LogHandler implements LogHandlerInterface
 
 		if (!file_exists($conf->global->SYSLOG_FIREPHP_INCLUDEPATH . self::$firephp_class_path))
 		{
-			$errors[] = $langs->trans("ErrorFailedToOpenFile", self::$firephp_class_path);
+			$conf->global->MAIN_SYSLOG_DISABLE_FIREPHP = 1; // avoid infinite loop
+			if (is_object($langs))   // $langs may not be defined yet.
+			{
+				$errors[] = $langs->trans("ErrorFailedToOpenFile", self::$firephp_class_path);
+			} 
+			else 
+			{
+				$errors[] = "ErrorFailedToOpenFile " . self::$firephp_class_path;
+			}
 		}
 
 		return $errors;