diff --git a/src/lang/slovenian.txt b/src/lang/slovenian.txt
--- a/src/lang/slovenian.txt
+++ b/src/lang/slovenian.txt
@@ -1,6 +1,6 @@
 ##name Slovenian
 ##ownname Slovenscina
-##isocode sl_SL.UTF-8
+##isocode sl_SL
 ##plural 8
 ##case 2_skl