diff --git a/script/cibuild b/script/cibuild
index 7236d9f7bb..6dc66b958d 100755
--- a/script/cibuild
+++ b/script/cibuild
@@ -73,6 +73,8 @@ def main():
     if PLATFORM != 'win32':
       run_script('test.py', ['--ci'])
 
+  run_script('clean.py')
+
 
 def run_script(script, args=[]):
   print 'Running', script