diff --git a/src/amd/vulkan/radv_video.c b/src/amd/vulkan/radv_video.c
index efd84784eb8..86fa138bef8 100644
--- a/src/amd/vulkan/radv_video.c
+++ b/src/amd/vulkan/radv_video.c
@@ -2040,6 +2040,8 @@ rvcn_dec_message_decode(struct radv_cmd_buffer *cmd_buffer, struct radv_video_se
       unreachable("unknown operation");
    }
 
+   header->total_size += index_codec->size;
+
    if (dpb_update_required)
       assert(frame_info->pSetupReferenceSlot != NULL);