diff --git a/cfg/wxwidgets.cfg b/cfg/wxwidgets.cfg
index e3261fda6..80414c4ae 100644
--- a/cfg/wxwidgets.cfg
+++ b/cfg/wxwidgets.cfg
@@ -6120,7 +6120,9 @@
   <!-- wxSize wxSizer::FitInside(wxWindow * window)-->
   <!-- wxSize wxBoxSizer::Fit(wxWindow * window)-->
   <!-- wxSize wxBoxSizer::FitInside(wxWindow * window)-->
-  <function name="wxSizer::Fit,wxSizer::FitInside,wxBoxSizer::Fit,wxBoxSizer::FitInside">
+  <!-- wxSize wxFlexGridSizer::Fit(wxWindow * window)-->
+  <!-- wxSize wxFlexGridSizer::FitInside(wxWindow * window)-->
+  <function name="wxSizer::Fit,wxSizer::FitInside,wxBoxSizer::Fit,wxBoxSizer::FitInside,wxFlexGridSizer::Fit,wxFlexGridSizer::FitInside">
     <noreturn>false</noreturn>
     <leak-ignore/>
     <returnValue type="wxSize"/>