1 files changed, 6 insertions, 0 deletions
diff --git a/TOOLS/matroska.py b/TOOLS/matroska.py
index 61a33ffb84..6abece6e95 100755
--- a/TOOLS/matroska.py
+++ b/TOOLS/matroska.py
@@ -165,6 +165,12 @@ elements_matroska = (
                         ),
                     ),
                 ),
+                'BlockAdditionMapping*, 41e4, sub', (
+                    'BlockAddIDValue, 41f0, uint',
+                    'BlockAddIDName, 41a4, str',
+                    'BlockAddIDType, 41e7, uint',
+                    'BlockAddIDExtraData, 41ed, binary',
+                ),
             ),
         ),