diff --git a/htdocs/lib/functions.lib.php b/htdocs/lib/functions.lib.php
index a1c127a84963fefe66650d42f7c175d51fc9e7c2..70f3223a4e25bd491499f225db51b745bf75c408 100644
--- a/htdocs/lib/functions.lib.php
+++ b/htdocs/lib/functions.lib.php
@@ -140,7 +140,7 @@ function dol_string_unaccent($str)
 	else
 	{
 		$string = strtr($str,
-		"xC0\xC1\xC2\xC3\xC5\xC7
+		"\xC0\xC1\xC2\xC3\xC5\xC7
 	        \xC8\xC9\xCA\xCB\xCC\xCD\xCE\xCF\xD0\xD1
 	        \xD2\xD3\xD4\xD5\xD8\xD9\xDA\xDB\xDD
 	        \xE0\xE1\xE2\xE3\xE5\xE7\xE8\xE9\xEA\xEB