diff --git a/rosen/modules/render_service/core/drawable/rs_surface_render_node_drawable.cpp b/rosen/modules/render_service/core/drawable/rs_surface_render_node_drawable.cpp
index aed401c954..1923acb7be 100644
--- a/rosen/modules/render_service/core/drawable/rs_surface_render_node_drawable.cpp
+++ b/rosen/modules/render_service/core/drawable/rs_surface_render_node_drawable.cpp
@@ -536,6 +536,7 @@ void RSSurfaceRenderNodeDrawable::OnCapture(Drawing::Canvas& canvas)
         return;
     }
 
+    // HidePrivacyContent is only for UICapture or NoneSystemCalling-WindowCapture
     bool isHiddenScene = canvas.GetUICapture() ||
         (RSUniRenderThread::GetCaptureParam().isSingleSurface_ &&
         !RSUniRenderThread::GetCaptureParam().isSystemCalling_);