diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 4c8910da661..ca45ad1514b 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -816,8 +816,10 @@ function dol_size($size, $type = '')
  */
 function dol_sanitizeFileName($str, $newstr = '_', $unaccent = 1)
 {
-	// List of special chars for filenames are defined on page https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file
-	$filesystem_forbidden_chars = array('<', '>', '/', '\\', '?', '*', '|', '"', ':', '°');
+	// List of special chars for filenames in windows are defined on page https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file
+	// Char '>' '<' '|' '$' and ';' are special chars for shells.
+	// Char '/' and '\' are file delimiters.
+	$filesystem_forbidden_chars = array('<', '>', '/', '\\', '?', '*', '|', '"', ':', '°', '$', ';');
 	return dol_string_nospecial($unaccent?dol_string_unaccent($str):$str, $newstr, $filesystem_forbidden_chars);
 }