diff --git a/src/kratingpainter.h b/src/kratingpainter.h
--- a/src/kratingpainter.h
+++ b/src/kratingpainter.h
@@ -61,6 +61,9 @@
      */
     ~KRatingPainter();
 
+    KRatingPainter(const KRatingPainter &) = delete;
+    KRatingPainter &operator=(const KRatingPainter &) = delete;
+
     /**
      * The maximum rating, i.e. how many stars are drawn
      * in total.