diff --git a/po/pl.po b/po/pl.po
index 41d7a4839e..4a41c9c66a 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -1359,7 +1359,7 @@ msgstr "Pamięć buforowana"
 
 #: js/messages.php:111
 msgid "Free memory"
-msgstr ""
+msgstr "Pamięć wolna"
 
 #: js/messages.php:112
 msgid "Used memory"