1 files changed, 3 insertions, 0 deletions
diff --git a/synapse/media/media_repository.py b/synapse/media/media_repository.py
index d11c2ff4ee..7fd46901f7 100644
--- a/synapse/media/media_repository.py
+++ b/synapse/media/media_repository.py
@@ -624,6 +624,7 @@ class MediaRepository:
                         height=t_height,
                         method=t_method,
                         type=t_type,
+                        length=t_byte_source.tell(),
                     ),
                 )
 
@@ -694,6 +695,7 @@ class MediaRepository:
                         height=t_height,
                         method=t_method,
                         type=t_type,
+                        length=t_byte_source.tell(),
                     ),
                 )
 
@@ -839,6 +841,7 @@ class MediaRepository:
                         height=t_height,
                         method=t_method,
                         type=t_type,
+                        length=t_byte_source.tell(),
                     ),
                 )