diff --git a/matroska/matroskatag.cpp b/matroska/matroskatag.cpp
index ed32410..91b1696 100644
--- a/matroska/matroskatag.cpp
+++ b/matroska/matroskatag.cpp
@@ -40,6 +40,7 @@ std::string MatroskaTag::fieldId(KnownField field) const
     case KnownField::Lyricist: return lyricist();
     case KnownField::Composer: return composer();
     case KnownField::Length: return duration();
+    case KnownField::Language: return language();
     default: return string();
     }
 }
@@ -67,7 +68,8 @@ KnownField MatroskaTag::knownField(const std::string &id) const
         {actor(), KnownField::Performers},
         {lyricist(), KnownField::Lyricist},
         {composer(), KnownField::Composer},
-        {duration(), KnownField::Length}
+        {duration(), KnownField::Length},
+        {language(), KnownField::Language},
     });
     try {
         return map.at(id);
diff --git a/matroska/matroskatagid.h b/matroska/matroskatagid.h
index bdfa30b..7c91f7e 100644
--- a/matroska/matroskatagid.h
+++ b/matroska/matroskatagid.h
@@ -262,6 +262,9 @@ inline TAG_PARSER_EXPORT const char *bpm() {
 inline TAG_PARSER_EXPORT const char *duration() {
     return "DURATION";
 }
+inline TAG_PARSER_EXPORT const char *language() {
+    return "LANGUAGE";
+}
 inline TAG_PARSER_EXPORT const char *numberOfFrames() {
     return "NUMBER_OF_FRAMES";
 }