diff --git a/earwigbot/wiki/copyvios/result.py b/earwigbot/wiki/copyvios/result.py
index 26f4d59..d664965 100644
--- a/earwigbot/wiki/copyvios/result.py
+++ b/earwigbot/wiki/copyvios/result.py
@@ -42,10 +42,9 @@ class CopyvioSource(object):
     - :py:attr:`skipped`:    whether this URL was skipped during the check
     """
 
-    def __init__(self, workspace, url, key, headers=None, timeout=5):
+    def __init__(self, workspace, url, headers=None, timeout=5):
         self.workspace = workspace
         self.url = url
-        self.key = key
         self.headers = headers
         self.timeout = timeout
         self.confidence = 0.0
diff --git a/earwigbot/wiki/copyvios/workers.py b/earwigbot/wiki/copyvios/workers.py
index 2030b78..88c0c38 100644
--- a/earwigbot/wiki/copyvios/workers.py
+++ b/earwigbot/wiki/copyvios/workers.py
@@ -323,7 +323,7 @@ class CopyvioWorkspace(object):
                     from urlparse import urlparse
                     key = u".".join(urlparse(url).netloc.split(".")[-2:])
 
-                source = CopyvioSource(url=url, key=key, **self._source_args)
+                source = CopyvioSource(url=url, **self._source_args)
                 self.sources.append(source)
                 logmsg = u"enqueue(): {0} {1} -> {2}"
                 if key in self._queues.sites: