diff --git a/deluge/ui/common.py b/deluge/ui/common.py
index 33cdc6bad..ccd89264a 100644
--- a/deluge/ui/common.py
+++ b/deluge/ui/common.py
@@ -131,9 +131,15 @@ def get_localhost_auth_uri(uri):
     :param uri: the uri to add the authentication info to
     :returns: a localhost uri containing authentication information or None if the information is not available
     """
+    u = urlparse.urlsplit(uri)
+    # If there is already a username in this URI, let's just return it since
+    # the user has provided credentials.
+    if u.username:
+        return uri
+
     auth_file = deluge.configmanager.get_config_dir("auth")
     if os.path.exists(auth_file):
-        u = urlparse.urlsplit(uri)
+
         for line in open(auth_file):
             try:
                 username, password = line.strip().split(":")