diff --git a/src/ext/libcharsetdetect/mozilla/extensions/universalchardet/src/base/LangCyrillicModel.cpp b/src/ext/libcharsetdetect/mozilla/extensions/universalchardet/src/base/LangCyrillicModel.cpp
index d2ef444..6f54f19 100644
--- a/src/ext/libcharsetdetect/mozilla/extensions/universalchardet/src/base/LangCyrillicModel.cpp
+++ b/src/ext/libcharsetdetect/mozilla/extensions/universalchardet/src/base/LangCyrillicModel.cpp
@@ -336,7 +336,7 @@ const SequenceModel MacCyrillicModel =
   RussianLangModel,
   (float)0.976601,
   PR_FALSE,
-  "x-mac-cyrillic",
+  "MAC-CYRILLIC",
   "Russian"
 };