diff --git a/htdocs/api/class/api_setup.class.php b/htdocs/api/class/api_setup.class.php
index abb09397361..2010e41fbb4 100644
--- a/htdocs/api/class/api_setup.class.php
+++ b/htdocs/api/class/api_setup.class.php
@@ -2127,7 +2127,7 @@ class Setup extends DolibarrApi
 
 				// Define qualified files (must be same than into generate_filelist_xml.php and in api_setup.class.php)
 				$regextoinclude = '\.(php|php3|php4|php5|phtml|phps|phar|inc|css|scss|html|xml|js|json|tpl|jpg|jpeg|png|gif|ico|sql|lang|txt|yml|bak|md|mp3|mp4|wav|mkv|z|gz|zip|rar|tar|less|svg|eot|woff|woff2|ttf|manifest)$';
-				$regextoexclude = '('.($includecustom ? '' : 'custom|').'documents|conf|install|dejavu-fonts-ttf-.*|public\/test|sabre\/sabre\/.*\/tests|Shared\/PCLZip|nusoap\/lib\/Mail|php\/example|php\/test|geoip\/sample.*\.php|ckeditor\/samples|ckeditor\/adapters)$'; // Exclude dirs
+				$regextoexclude = '('.($includecustom ? '' : 'custom|').'documents|escpos-php\/doc|conf|install|dejavu-fonts-ttf-.*|public\/test|sabre\/sabre\/.*\/tests|Shared\/PCLZip|nusoap\/lib\/Mail|php\/example|php\/test|geoip\/sample.*\.php|ckeditor\/samples|ckeditor\/adapters)$'; // Exclude dirs
 				$scanfiles = dol_dir_list(DOL_DOCUMENT_ROOT, 'files', 1, $regextoinclude, $regextoexclude);
 
 				// Fill file_list with files in signature, new files, modified files