diff --git a/po/sk.po b/po/sk.po
index 48b9e4d021..eeec2d8b98 100644
--- a/po/sk.po
+++ b/po/sk.po
@@ -1080,7 +1080,7 @@ msgstr "Odstraňujem stĺpce"
 
 #: js/messages.php:67
 msgid "Adding Primary Key"
-msgstr ""
+msgstr "Pridavam primarny kľúč"
 
 #: js/messages.php:68 libraries/relation.lib.php:87 pmd_general.php:386
 #: pmd_general.php:543 pmd_general.php:591 pmd_general.php:667