diff --git a/Lib/uu.py b/Lib/uu.py
index da096ea..d70f0e6 100755
--- a/Lib/uu.py
+++ b/Lib/uu.py
@@ -80,7 +80,7 @@
     out_file.write(b' \nend\n')
 
 
-def decode(in_file, out_file=None, mode=None, quiet=0):
+def decode(in_file, out_file=None, mode=None, quiet=False):
     """Decode uuencoded file"""
     #
     # Open the input file, if needed.