diff --git a/po/sl.po b/po/sl.po
index ed2a7df655..a305842346 100644
--- a/po/sl.po
+++ b/po/sl.po
@@ -1197,7 +1197,7 @@ msgstr "Dodaj grafikon na mrežo"
 
 #: js/messages.php:107
 msgid "Please add at least one variable to the series"
-msgstr ""
+msgstr "Prosimo, v serijo dodajte vsaj eno spremenljivko"
 
 #: js/messages.php:108 libraries/display_export.lib.php:306
 #: libraries/display_tbl.lib.php:564 libraries/export/sql.php:1039