1 files changed, 1 insertions, 1 deletions
diff --git a/src/widgets/kernel/qwhatsthis.h b/src/widgets/kernel/qwhatsthis.h
index 2583e3bb62..e901b474fd 100644
--- a/src/widgets/kernel/qwhatsthis.h
+++ b/src/widgets/kernel/qwhatsthis.h
@@ -56,7 +56,7 @@ class QAction;
 
 class Q_WIDGETS_EXPORT QWhatsThis
 {
-    QWhatsThis();
+    QWhatsThis() Q_DECL_EQ_DELETE;
 
 public:
     static void enterWhatsThisMode();