diff --git a/stdlib/2/urllib2.pyi b/stdlib/2/urllib2.pyi
index 8602ec9d2..6c1d30c52 100644
--- a/stdlib/2/urllib2.pyi
+++ b/stdlib/2/urllib2.pyi
@@ -128,7 +128,7 @@ class ProxyDigestAuthHandler(BaseHandler, AbstractDigestAuthHandler):
     def http_error_407(self, req, fp, code, msg, headers): ...
 
 class AbstractHTTPHandler(BaseHandler):
-    def __init__(self, debuglevel: int) -> None: ...
+    def __init__(self, debuglevel: int=0) -> None: ...
     def do_request_(self, request): ...
     def do_open(self, http_class, req): ...