diff --git a/cfg/wxwidgets.cfg b/cfg/wxwidgets.cfg
index 6ad1be9bf..9dd6bc06c 100644
--- a/cfg/wxwidgets.cfg
+++ b/cfg/wxwidgets.cfg
@@ -6560,4 +6560,15 @@
       <not-uninit/>
     </arg>
   </function>
+  <!-- void wxPropertyGridManager::SetSplitterPosition(int pos, int column = 0) -->
+  <function name="wxPropertyGridManager::SetSplitterPosition">
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2" default="0">
+      <not-uninit/>
+    </arg>
+  </function>
 </def>