diff --git a/po/sk.po b/po/sk.po
index c7376d5b81..459b1ab4f2 100644
--- a/po/sk.po
+++ b/po/sk.po
@@ -2510,7 +2510,7 @@ msgstr ""
 
 #: libraries/config/messages.inc.php:40
 msgid "Compress on the fly"
-msgstr ""
+msgstr "Komprimovať za behu"
 
 #: libraries/config/messages.inc.php:41 setup/frames/config.inc.php:25
 #: setup/frames/index.inc.php:165