diff --git a/build/bakefiles/wxpresets/presets/wx.bkl b/build/bakefiles/wxpresets/presets/wx.bkl
index e030b3b90e..eae18ed220 100644
--- a/build/bakefiles/wxpresets/presets/wx.bkl
+++ b/build/bakefiles/wxpresets/presets/wx.bkl
@@ -272,6 +272,9 @@
         <if cond="WX_DEBUG=='0' and WX_UNICODE=='1'">u</if>
     </set>
 
+    <!-- FIXME: how to make it a make var? -->
+    <set var="COMPILER_PREFIX">$(COMPILER)</set>
+