diff --git a/libavformat/matroska.h b/libavformat/matroska.h
index 344b2c32fa0827d5c8c799df5e94d71ecf5fb558..a654e0c62325dbf51fddda742250e51d804abef0 100644
--- a/libavformat/matroska.h
+++ b/libavformat/matroska.h
@@ -218,6 +218,7 @@
 #define MATROSKA_ID_CHAPTERDISPLAY      0x80
 #define MATROSKA_ID_CHAPSTRING          0x85
 #define MATROSKA_ID_CHAPLANG            0x437C
+#define MATROSKA_ID_CHAPCOUNTRY         0x437E
 #define MATROSKA_ID_EDITIONUID          0x45BC
 #define MATROSKA_ID_EDITIONFLAGHIDDEN   0x45BD
 #define MATROSKA_ID_EDITIONFLAGDEFAULT  0x45DB
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 43ad9af0db2b3273631450ab43853822ccd1ddce..7a094a6fb8619f2b70383c4c60f924a0d4aa9065 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -474,8 +474,9 @@ static const EbmlSyntax matroska_attachments[] = {
 };
 
 static const EbmlSyntax matroska_chapter_display[] = {
-    { MATROSKA_ID_CHAPSTRING, EBML_UTF8, 0, offsetof(MatroskaChapter, title) },
-    { MATROSKA_ID_CHAPLANG,   EBML_NONE },
+    { MATROSKA_ID_CHAPSTRING,  EBML_UTF8, 0, offsetof(MatroskaChapter, title) },
+    { MATROSKA_ID_CHAPLANG,    EBML_NONE },
+    { MATROSKA_ID_CHAPCOUNTRY, EBML_NONE },
     { 0 }
 };