diff --git a/samples/help/help.bkl b/samples/help/help.bkl
index 1c933f1c60..28bf7e42b1 100644
--- a/samples/help/help.bkl
+++ b/samples/help/help.bkl
@@ -5,6 +5,7 @@
 
     <exe id="help" template="wx_sample" template_append="wx_append">
         <sources>demo.cpp</sources>
+        <wx-lib>html</wx-lib>
         <wx-lib>core</wx-lib>
         <wx-lib>base</wx-lib>
         <win32-res>demo.rc</win32-res>