diff --git a/htdocs/compta/facture/card.php b/htdocs/compta/facture/card.php
index 80c7bafc3d7..1ca81169cfb 100644
--- a/htdocs/compta/facture/card.php
+++ b/htdocs/compta/facture/card.php
@@ -5412,15 +5412,14 @@ if ($action == 'create') {
 			}
 
 			// Classify paid
-			if (($object->statut == Facture::STATUS_VALIDATED && $object->paye == 0 && $usercanissuepayment && (($object->type != Facture::TYPE_CREDIT_NOTE && $object->type != Facture::TYPE_DEPOSIT && $resteapayer <= 0) || ($object->type == Facture::TYPE_CREDIT_NOTE && $resteapayer >= 0)))
-				|| ($object->type == Facture::TYPE_DEPOSIT && $object->paye == 0 && $object->total_ttc > 0 && $resteapayer == 0 && $usercanissuepayment && empty($discount->id))
-				|| ($object->type == Facture::TYPE_DEPOSIT && $object->paye == 0 && $object->total_ttc > 0 && $resteapayer == 0 && $usercanissuepayment && !empty($discount->id))	// If down payment is paid and then converted in credit, we can close it.
+			if (($object->statut == Facture::STATUS_VALIDATED && $object->paye == 0 && $usercanissuepayment
+				&& (($object->type != Facture::TYPE_CREDIT_NOTE && $object->type != Facture::TYPE_DEPOSIT && $resteapayer <= 0) || ($object->type == Facture::TYPE_CREDIT_NOTE && $resteapayer >= 0) || ($object->type == Facture::TYPE_DEPOSIT && $object->total_ttc > 0)))
 			) {
-				if (price2num($object->total_ttc, 'MT') == price2num($sumofpayment, 'MT')) {
+				if ($object->type == Facture::TYPE_DEPOSIT && price2num($object->total_ttc, 'MT') != price2num($sumofpayment, 'MT')) {
 					// We can close a down payment only if paid amount is same than amount of down payment (by definition)
-					print '<a class="butAction'.($conf->use_javascript_ajax ? ' reposition' : '').'" href="'.$_SERVER['PHP_SELF'].'?facid='.$object->id.'&amp;action=paid">'.$langs->trans('ClassifyPaid').'</a>';
-				} else {
 					print '<span class="butActionRefused" title="'.$langs->trans("AmountPaidMustMatchAmountOfDownPayment").'">'.$langs->trans('ClassifyPaid').'</span>';
+				} else {
+					print '<a class="butAction'.($conf->use_javascript_ajax ? ' reposition' : '').'" href="'.$_SERVER['PHP_SELF'].'?facid='.$object->id.'&amp;action=paid">'.$langs->trans('ClassifyPaid').'</a>';
 				}
 			}