diff --git a/drm/DrmAtomicStateManager.h b/drm/DrmAtomicStateManager.h
index 923927d..d1af6e0 100644
--- a/drm/DrmAtomicStateManager.h
+++ b/drm/DrmAtomicStateManager.h
@@ -36,6 +36,7 @@
   std::optional<bool> active;
   std::shared_ptr<DrmKmsPlan> composition;
   std::shared_ptr<drm_color_ctm> color_matrix;
+  std::optional<int32_t> content_type;
 
   std::shared_ptr<DrmFbIdHandle> writeback_fb;
   SharedFd writeback_release_fence;