diff --git a/htdocs/core/lib/functionsnumtoword.lib.php b/htdocs/core/lib/functionsnumtoword.lib.php
index 50b0dacbe92..7c7ace312da 100644
--- a/htdocs/core/lib/functionsnumtoword.lib.php
+++ b/htdocs/core/lib/functionsnumtoword.lib.php
@@ -1,7 +1,8 @@
 <?php
-/* Copyright (C) 2015 Laurent Destailleur  <eldy@users.sourceforge.net>
- * Copyright (C) 2015 Víctor Ortiz Pérez   <victor@accett.com.mx>
- * Copyright (C) 2024		MDW							<mdeweerd@users.noreply.github.com>
+/* Copyright (C) 2015       Laurent Destailleur     <eldy@users.sourceforge.net>
+ * Copyright (C) 2015       Víctor Ortiz Pérez      <victor@accett.com.mx>
+ * Copyright (C) 2024		MDW						<mdeweerd@users.noreply.github.com>
+ * Copyright (C) 2024       Frédéric France         <frederic.france@free.fr>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -139,7 +140,7 @@ function dol_convertToWord($num, $langs, $currency = '', $centimes = false)
 				$concatWords .= ' '.$langs->transnoentities('and');
 			}
 
-			$concatWords .= ' '.dol_convertToWord($decimalpart, $langs, '', true);
+			$concatWords .= ' '.dol_convertToWord((float) $decimalpart, $langs, '', true);
 			if (!empty($currency)) {
 				$concatWords .= ' '.$langs->transnoentities('centimes');
 			}
diff --git a/htdocs/core/modules/supplier_payment/doc/pdf_standard_supplierpayment.modules.php b/htdocs/core/modules/supplier_payment/doc/pdf_standard_supplierpayment.modules.php
index 27b79ba5c41..57ac5692220 100644
--- a/htdocs/core/modules/supplier_payment/doc/pdf_standard_supplierpayment.modules.php
+++ b/htdocs/core/modules/supplier_payment/doc/pdf_standard_supplierpayment.modules.php
@@ -524,7 +524,7 @@ class pdf_standard_supplierpayment extends ModelePDFSuppliersPayments
 
 		// translate amount
 		$currency = $conf->currency;
-		$translateinletter = strtoupper(dol_convertToWord(price2num($object->amount, 'MT'), $outputlangs, $currency));
+		$translateinletter = strtoupper(dol_convertToWord((float) price2num($object->amount, 'MT'), $outputlangs, $currency));
 		$pdf->SetXY($this->marge_gauche + 50, $posy);
 		$pdf->SetFont('', '', $default_font_size - 3);
 		$pdf->MultiCell(90, 8, $translateinletter, 0, 'L', 1);
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index 8f96fbcae87..483e829b74e 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -88,7 +88,7 @@ parameters:
 		- '#(?:dol_(?:mktime|remove_file_process)|print_actions_filter) expects int, array\|string given\.#'
 		- '# (CSMSFile) constructor expects int, array\|string given.#'
 		- '#(?:ProductFournisseur::logPrice\(\)) expects float\|null#'
-		- '#(?:(?:Asset::addDepreciationL|Facture(?:(?:(?:Fournisseur)?::add|Fournisseur::update)l))ine\(\)|calcul_price_total|dol_convertToWord|(?:loanCalcMonthlyPaymen|print_paypal_redirec)t) expects float, string given.#'
+		- '#(?:(?:Asset::addDepreciationL|Facture(?:(?:(?:Fournisseur)?::add|Fournisseur::update)l))ine\(\)|calcul_price_total|(?:loanCalcMonthlyPaymen|print_paypal_redirec)t) expects float, string given.#'
 		- '#EvalMath::trigger\(\) expects string\|null,#'
 		- '#(?:F(?:acture(?:(?:Fournisseur)?Rec::addline\(\))|ichinterRec::addLineRec\(\))|dolMd2Html|setEventMessages) expects string\|null,#'
 		- '#::printStdColumnContent\(\) expects string, float(\|(int|array)(\<.*\>)?)* given.#'