diff --git a/Gettext/Extractors/Po.php b/Gettext/Extractors/Po.php
index f35a7b21..2ce4a4c6 100644
--- a/Gettext/Extractors/Po.php
+++ b/Gettext/Extractors/Po.php
@@ -80,7 +80,7 @@ static public function parse ($file, Entries $entries) {
 
 				default:
 					if (strpos($key, 'msgstr[') === 0) {
-						$translation->addPluralTranslation(self::clean($data));
+						$translation->setPluralTranslation(self::clean($data));
 						$append = 'PluralTranslation';
 						break;
 					}