diff --git a/htdocs/core/lib/pdf.lib.php b/htdocs/core/lib/pdf.lib.php
index 05f9cb78ca4..a4954c07f39 100644
--- a/htdocs/core/lib/pdf.lib.php
+++ b/htdocs/core/lib/pdf.lib.php
@@ -2217,7 +2217,7 @@ function pdf_getSizeForImage($realpath)
  * 	@return	string							Return total of line excl tax
  */
 
-function pdf_getLineTotalDiscountAmount($object, $i, $outputlangs, $hidedetails=0)
+function pdfGetLineTotalDiscountAmount($object, $i, $outputlangs, $hidedetails=0)
 {
 	global $conf, $hookmanager;
 	$sign=1;
diff --git a/htdocs/core/modules/facture/doc/pdf_sponge.modules.php b/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
index 9a5a3a371f6..0e5f9a69819 100644
--- a/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
+++ b/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
@@ -1361,7 +1361,7 @@ class pdf_sponge extends ModelePDFFactures
 		// Total remise
 		$total_line_remise=0;
 		foreach($object->lines as $i => $line) {
-		    $total_line_remise+= pdf_getLineTotalDiscountAmount($object,$i,$outputlangs,2); // TODO: add this methode to core/lib/pdf.lib
+		    $total_line_remise+= pdfGetLineTotalDiscountAmount($object,$i,$outputlangs,2); // TODO: add this methode to core/lib/pdf.lib
 		    // Gestion remise sous forme de ligne négative
 		    if($line->total_ht < 0) $total_line_remise += -$line->total_ht;
 		}