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 ff7abbca53a..98b644c8cce 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
@@ -317,7 +317,7 @@ class doc_generic_contract_odt extends ModelePDFContract
 
 				// Line of free text
 				$newfreetext='';
-				$paramfreetext='contract_FREE_TEXT';
+				$paramfreetext='CONTRACT_FREE_TEXT';
 				if (! empty($conf->global->$paramfreetext))
 				{
 					$newfreetext=make_substitutions($conf->global->$paramfreetext,$tmparray);