diff --git a/Tools/autotest/param_metadata/param.py b/Tools/autotest/param_metadata/param.py
index 2ed689834e..804ce25a9f 100644
--- a/Tools/autotest/param_metadata/param.py
+++ b/Tools/autotest/param_metadata/param.py
@@ -23,7 +23,7 @@ known_param_fields = [
              'Units',
              'Increment',
              'User',
-             'RebootRequired'
+             'RebootRequired',
              'Bitmask'
                       ]