diff --git a/ChangeLog b/ChangeLog
index 5b93245f378afa657c9d247c6f101ea0f14f6785..ad4b18285a52b4f3466ee75cbbeaf741b58d4fc7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -25,6 +25,8 @@ Dolibarr better:
 check you make a fetch on object before calling the delete.
 - The old driver of "mysql" has been removed. Dolibarr use the new one (mysqli) by default.
 - Remove not used function calculate_byte(). Use dol_print_size() instead.
+- Function pdf_getTotalQty is now deprecated. Not used by Dolibarr core.
+
 
 
 ***** ChangeLog for 4.0.0 compared to 3.9.* *****
diff --git a/htdocs/core/lib/pdf.lib.php b/htdocs/core/lib/pdf.lib.php
index 9a1ba356969b060899f5d67aa9a97d4447af19df..2319b52c2b12d1e87c449afa2d865e27fb6652b3 100644
--- a/htdocs/core/lib/pdf.lib.php
+++ b/htdocs/core/lib/pdf.lib.php
@@ -1846,6 +1846,7 @@ function pdf_getlinetotalwithtax($object,$i,$outputlangs,$hidedetails=0)
  *	@param	string		$type				Type
  *  @param  Translate	$outputlangs		Object langs for output
  * 	@return	integer
+ *  @deprecated Not used by Dolibarr core, so will be removed.
  */
 function pdf_getTotalQty($object,$type,$outputlangs)
 {