diff --git a/htdocs/core/lib/files.lib.php b/htdocs/core/lib/files.lib.php
index 84b867bdb3e..6163afd6ab3 100644
--- a/htdocs/core/lib/files.lib.php
+++ b/htdocs/core/lib/files.lib.php
@@ -2509,7 +2509,7 @@ function dol_check_secure_access_document($modulepart, $original_file, $entity,
 		$original_file = $conf->medias->multidir_output[$entity].'/'.$original_file;
 	} elseif ($modulepart == 'logs' && !empty($dolibarr_main_data_root)) {
 		// Wrapping for *.log files, like when used with url http://.../document.php?modulepart=logs&file=dolibarr.log
-		$accessallowed = ($user->admin && basename($original_file) == $original_file && preg_match('/^dolibarr.*\.log$/', basename($original_file)));
+		$accessallowed = ($user->admin && basename($original_file) == $original_file && preg_match('/^dolibarr.*\.(log|json)$/', basename($original_file)));
 		$original_file = $dolibarr_main_data_root.'/'.$original_file;
 	} elseif ($modulepart == 'doctemplates' && !empty($dolibarr_main_data_root)) {
 		// Wrapping for doctemplates