diff --git a/pxtarget.json b/pxtarget.json
index e927aeb0..7a12a860 100644
--- a/pxtarget.json
+++ b/pxtarget.json
@@ -392,6 +392,7 @@
             "pt-PT",
             "ru",
             "si-LK",
+            "sk",
             "sv-SE",
             "tr",
             "uk",