diff --git a/buildbot/master.cfg b/buildbot/master.cfg
index 78aa6fff..be131b89 100644
--- a/buildbot/master.cfg
+++ b/buildbot/master.cfg
@@ -151,7 +151,7 @@ def makeFactory(port, buildType='buildOnly', pyVer='2.7'):
 
 
     if buildType == 'docs':
-        cmd = 'python -u build.py %s dox touch etg wxlib sphinx docs_bdist --upload_package' % pyVer
+        cmd = 'python -u build.py %s dox touch etg sip build wxlib sphinx docs_bdist --upload_package' % pyVer
     else:
         cmd = 'python -u build.py %s %s dox touch etg --nodoc sip build' % (pyVer, clean)
         if port == 'osx':