diff --git a/htdocs/core/modules/contract/doc/doc_generic_contract_odt.modules.php b/htdocs/core/modules/contract/doc/doc_generic_contract_odt.modules.php
index 190abd86126..c938f40cfb2 100644
--- a/htdocs/core/modules/contract/doc/doc_generic_contract_odt.modules.php
+++ b/htdocs/core/modules/contract/doc/doc_generic_contract_odt.modules.php
@@ -408,9 +408,11 @@ class doc_generic_contract_odt extends ModelePDFContract
 					}
 					if ($foundtagforlines)
 					{
+						$linenumber = 0;
 						foreach ($object->lines as $line)
 						{
-							$tmparray = $this->get_substitutionarray_lines($line, $outputlangs);
+							$linenumber++;
+							$tmparray = $this->get_substitutionarray_lines($line, $outputlangs, $linenumber);
 							complete_substitutions_array($tmparray, $outputlangs, $object, $line, "completesubstitutionarray_lines");
 							// Call the ODTSubstitutionLine hook
 							$parameters = array('odfHandler'=>&$odfHandler, 'file'=>$file, 'object'=>$object, 'outputlangs'=>$outputlangs, 'substitutionarray'=>&$tmparray, 'line'=>$line);