diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 391657135b8..f9adc7bcf40 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -7723,7 +7723,7 @@ function getCommonSubstitutionArray($outputlangs, $onlykey = 0, $exclude = null,
 		$substitutionarray['__AMOUNT_TEXT__']     = is_object($object) ? dol_convertToWord($object->total_ttc, $outputlangs, '', true) : '';
 		$substitutionarray['__AMOUNT_TEXTCURRENCY__'] = is_object($object) ? dol_convertToWord($object->total_ttc, $outputlangs, $conf->currency, true) : '';
 
-		$substitutionarray['__AMOUNT_REMAIN__'] = is_object($object) ? $object->total_ttc - $already_payed_all : '';
+		$substitutionarray['__AMOUNT_REMAIN__'] = is_object($object) ? price2num($object->total_ttc - $already_payed_all, 'MT') : '';
 
 		$substitutionarray['__AMOUNT_VAT__']      = is_object($object) ? (isset($object->total_vat) ? $object->total_vat : $object->total_tva) : '';
 		$substitutionarray['__AMOUNT_VAT_TEXT__']      = is_object($object) ? (isset($object->total_vat) ? dol_convertToWord($object->total_vat, $outputlangs, '', true) : dol_convertToWord($object->total_tva, $outputlangs, '', true)) : '';