diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index 649b7b0c093..686f714827a 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -463,11 +463,17 @@ class Facture extends CommonInvoice
 		$this->status = self::STATUS_DRAFT;
 		$this->statut = self::STATUS_DRAFT;
 
-		// Multicurrency (test on $this->multicurrency_tx because we should take the default rate only if not using origin rate)
-		if (!empty($this->multicurrency_code) && empty($this->multicurrency_tx)) {
-			list($this->fk_multicurrency, $this->multicurrency_tx) = MultiCurrency::getIdAndTxFromCode($this->db, $this->multicurrency_code, $this->date);
+		if (!empty($this->multicurrency_code)) {
+			// Multicurrency (test on $this->multicurrency_tx because we should take the default rate of multicurrency_code only if not using original rate)
+			if (empty($this->multicurrency_tx)) {
+				// If original rate is not set, we take a default value from date
+				list($this->fk_multicurrency, $this->multicurrency_tx) = MultiCurrency::getIdAndTxFromCode($this->db, $this->multicurrency_code, $this->date);
+			} else {
+				// original rate multicurrency_tx and multicurrency_code are set, we use them
+				$this->fk_multicurrency = MultiCurrency::getIdFromCode($this->db, $this->multicurrency_code);
+			}
 		} else {
-			$this->fk_multicurrency = MultiCurrency::getIdFromCode($this->db, $this->multicurrency_code);
+			$this->fk_multicurrency = 0;
 		}
 		if (empty($this->fk_multicurrency)) {
 			$this->multicurrency_code = $conf->currency;