diff --git a/apps/shared/round_cursor_view.cpp b/apps/shared/round_cursor_view.cpp
index ecc0fad09..790817b7d 100644
--- a/apps/shared/round_cursor_view.cpp
+++ b/apps/shared/round_cursor_view.cpp
@@ -50,6 +50,10 @@ void RoundCursorView::setCursorFrame(KDRect f, bool force) {
 }
 
 void RoundCursorView::markRectAsDirty(KDRect rect) {
+  /* The CursorView class inherits from TransparentView, so does
+   * RoundCursorView. The method markRectAsDirty is thus overriden to avoid
+   * marking as dirty the background of the RoundCursorView in its superview.
+   */
   View::markRectAsDirty(rect);
 }