diff --git a/cfg/wxwidgets.cfg b/cfg/wxwidgets.cfg
index 6f66f45ce..7579913fd 100644
--- a/cfg/wxwidgets.cfg
+++ b/cfg/wxwidgets.cfg
@@ -13807,4 +13807,14 @@
       <not-bool/>
     </arg>
   </function>
+  <!-- void wxArrayString:reserve(wxString::size_type new_capacity); -->
+  <function name="wxArrayString::reserve">
+    <noreturn>false</noreturn>
+    <returnValue type="void"/>
+    <arg nr="1" direction="in">
+      <not-uninit/>
+      <not-bool/>
+      <valid>0:</valid>
+    </arg>
+  </function>
 </def>