diff --git a/htdocs/accountancy/bookkeeping/card.php b/htdocs/accountancy/bookkeeping/card.php
index 7ba52dabb30..36ed261f20f 100644
--- a/htdocs/accountancy/bookkeeping/card.php
+++ b/htdocs/accountancy/bookkeeping/card.php
@@ -171,8 +171,8 @@ else if ($action == "add") {
 		$object->doc_ref = GETPOST('doc_ref','alpha');
 		$object->code_journal = $journal_code;
 		$object->journal_label = $journal_label;
-		$object->fk_doc = GETPOST('fk_doc','integer');
-		$object->fk_docdet = GETPOST('fk_docdet','integer');
+		$object->fk_doc = GETPOST('fk_doc','int');
+		$object->fk_docdet = GETPOST('fk_docdet','int');
 
 		if (floatval($debit) != 0.0) {
 			$object->montant = $debit;