diff --git a/po/th.po b/po/th.po
index 25097c4102..a0d420fe45 100644
--- a/po/th.po
+++ b/po/th.po
@@ -1641,7 +1641,7 @@ msgstr "ตัวเลือกรองประวัติตาราง"
 #. l10n: Filter as in "Start Filtering"
 #: js/messages.php:197
 msgid "Filter"
-msgstr ""
+msgstr "ตัวกรอง"
 
 #: js/messages.php:198
 msgid "Filter queries by word/regexp:"