diff --git a/src/ptvsd/adapter/__main__.py b/src/ptvsd/adapter/__main__.py
index 2c23229c..7915c176 100644
--- a/src/ptvsd/adapter/__main__.py
+++ b/src/ptvsd/adapter/__main__.py
@@ -22,7 +22,7 @@ def main(args):
     from ptvsd.adapter import session, options as adapter_options
 
     if args.log_stderr:
-        log.stderr_levels |= set(log.LEVELS)
+        log.stderr.levels |= set(log.LEVELS)
         adapter_options.log_stderr = True
     if args.log_dir is not None:
         common_options.log_dir = args.log_dir
diff --git a/src/ptvsd/server/cli.py b/src/ptvsd/server/cli.py
index d072a2e5..2fbd24e4 100644
--- a/src/ptvsd/server/cli.py
+++ b/src/ptvsd/server/cli.py
@@ -78,7 +78,7 @@ def set_const(varname, value, options=options):
 
 def set_log_stderr():
     def do(arg, it):
-        log.stderr_levels |= set(log.LEVELS)
+        log.stderr.levels |= set(log.LEVELS)
 
     return do