diff --git a/Lib/urllib/robotparser.py b/Lib/urllib/robotparser.py
index bafb611..30baa05 100644
--- a/Lib/urllib/robotparser.py
+++ b/Lib/urllib/robotparser.py
@@ -129,8 +129,10 @@
             return True
         # search for given user agent matches
         # the first match counts
-        url = urllib.parse.quote(
-            urllib.parse.urlparse(urllib.parse.unquote(url))[2])
+        parsed_url = urllib.parse.urlparse(urllib.parse.unquote(url))
+        url = urllib.parse.urlunparse(('','',parsed_url.path,
+            parsed_url.params,parsed_url.query, parsed_url.fragment))
+        url = urllib.parse.quote(url)
         if not url:
             url = "/"
         for entry in self.entries: