diff --git a/cfg/wxwidgets.cfg b/cfg/wxwidgets.cfg
index ad2ed185a..aaa347f0c 100644
--- a/cfg/wxwidgets.cfg
+++ b/cfg/wxwidgets.cfg
@@ -6799,6 +6799,17 @@
       <not-uninit/>
     </arg>
   </function>
+  <!-- wxString wxString::BeforeFirst( wxUniChar ch, wxString * rest = NULL) const -->
+  <!-- wxString wxString::BeforeLast( wxUniChar ch, wxString * rest = NULL) const -->
+  <function name="wxString::BeforeFirst,wxString::BeforeLast">
+    <noreturn>false</noreturn>
+    <returnValue type="wxString"/>
+    <const/>
+    <arg nr="1"/>
+    <arg nr="2" default="NULL">
+      <not-uninit/>
+    </arg>
+  </function>
   <!--size_t wxArrayString::GetCount() const-->
   <function name="wxArrayString::GetCount">
     <noreturn>false</noreturn>