diff --git a/src/lang/slovenian.txt b/src/lang/slovenian.txt
index 23003342f9..a7f1c64e6d 100644
--- a/src/lang/slovenian.txt
+++ b/src/lang/slovenian.txt
@@ -1,6 +1,6 @@
 ##name Slovenian
 ##ownname Slovenščina
-##isocode sl_SL
+##isocode sl_SI
 ##plural 8
 ##textdir ltr
 ##digitsep .