diff --git a/source/Makefile b/source/Makefile
index 094b28e1..7169ca2d 100644
--- a/source/Makefile
+++ b/source/Makefile
@@ -16,7 +16,7 @@ HEXFILE_DIR=Hexfile
 OUTPUT_DIR_BASE=Objects
 OUTPUT_DIR=Objects/$(model)
 
-ALL_LANGUAGES=BG CS DA DE EN ES FI FR HR HU IT JA_JP LT NL NL_BE NO PL PT RU SK SL SR_CYRL SR_LATN SV TR UK YUE_HK ZH_CN ZH_TW
+ALL_LANGUAGES=BG CS DA DE EN ES FI FR HR HU IT JA_JP LT NL NL_BE NO PL PT RU SK SL SR_CYRL SR_LATN SV TR UK VI YUE_HK ZH_CN ZH_TW
 
 LANGUAGE_GROUP_CJK_LANGS=EN JA_JP YUE_HK ZH_TW ZH_CN
 LANGUAGE_GROUP_CJK_NAME=Chinese+Japanese