diff --git a/cfg/wxwidgets.cfg b/cfg/wxwidgets.cfg
index c1370373b54..9dea60761d1 100644
--- a/cfg/wxwidgets.cfg
+++ b/cfg/wxwidgets.cfg
@@ -17078,12 +17078,16 @@ wxItemKind kind = wxITEM_NORMAL) -->
   <!-- bool wxWindow::Layout( void ) -->
   <!-- bool wxWindowBase::Layout( void ) -->
   <!-- bool wxGrid::Layout( void ) -->
-  <!-- bool wxPanel::Layout( void ) -->
-  <function name="wxWindow::Layout,wxWindowBase::Layout,wxFrame::Layout,wxGrid::Layout,wxPanel::Layout">
+  <function name="wxWindow::Layout,wxWindowBase::Layout,wxFrame::Layout,wxGrid::Layout">
       <noreturn>false</noreturn>
       <leak-ignore/>
       <returnValue type="bool"/>
       <use-retval/>
+  </function>  
+  <!-- bool wxPanel::Layout( void ) -->
+  <function name="wxPanel::Layout">
+      <noreturn>false</noreturn>
+      <returnValue type="bool"/>
   </function>
   <!-- void wxSizer::Layout( void ) -->
   <!-- void wxBoxSizer::Layout( void ) -->
diff --git a/test/cfg/wxwidgets.cpp b/test/cfg/wxwidgets.cpp
index 983f3e1bbc3..c25dfa8e1b4 100644
--- a/test/cfg/wxwidgets.cpp
+++ b/test/cfg/wxwidgets.cpp
@@ -972,6 +972,10 @@ void ignoredReturnValue_wxDC_GetSizeMM(const wxDC &dc, wxCoord *width, wxCoord *
     (void)dc.GetSizeMM();
 }
 
+void ignoredReturnValue_wxPanel_Layout(wxPanel* panel) { // #14403
+    panel->Layout();
+}
+
 wxSizerItem* invalidFunctionArgBool_wxSizer_Add(wxSizer *sizer, wxWindow * window, const wxSizerFlags &flags)
 {
     // No warning is expected for