diff --git a/cfg/wxwidgets.cfg b/cfg/wxwidgets.cfg
index e7db8a64a..373ed0b56 100644
--- a/cfg/wxwidgets.cfg
+++ b/cfg/wxwidgets.cfg
@@ -45,6 +45,7 @@
   <define name="EVT_SEARCHCTRL_CANCEL_BTN(id,func)" value=""/>
   <define name="EVT_SEARCHCTRL_SEARCH_BTN(id,func)" value=""/>
   <define name="EVT_HTML_CELL_CLICKED(id,func)" value=""/>
+  <define name="EVT_SYS_COLOUR_CHANGED (func)" value=""/>
   <define name="EVT_HTML_CELL_HOVER(id,func)" value=""/>
   <define name="EVT_HTML_LINK_CLICKED(id,func)" value=""/>
   <define name="EVT_MENU(id,func)" value=""/>