1 files changed, 1 insertions, 2 deletions
diff --git a/src/widgets/doc/snippets/code/src_gui_kernel_qlayoutitem.cpp b/src/widgets/doc/snippets/code/src_gui_kernel_qlayoutitem.cpp
index d9f70b91ed..dd0f860c01 100644
--- a/src/widgets/doc/snippets/code/src_gui_kernel_qlayoutitem.cpp
+++ b/src/widgets/doc/snippets/code/src_gui_kernel_qlayoutitem.cpp
@@ -52,8 +52,7 @@
 int MyLayout::heightForWidth(int w) const
 {
     if (cache_dirty || cached_width != w) {
-        // not all C++ compilers support "mutable"
-        MyLayout *that = (MyLayout*)this;
+        MyLayout *that = const_cast<MyLayout *>(this);
         int h = calculateHeightForWidth(w);
         that->cached_hfw = h;
         return h;