diff --git a/plugins/Herald.py b/plugins/Herald.py
index 47a6825e0..cdf8dbfe5 100644
--- a/plugins/Herald.py
+++ b/plugins/Herald.py
@@ -56,7 +56,7 @@ class HeraldDB(plugins.ChannelUserDB):
     def serialize(self, v):
         return [v]
 
-    def deserialize(self, L):
+    def deserialize(self, channel, id, L):
         if len(L) != 1:
             raise ValueError
         return L[0]
diff --git a/plugins/Seen.py b/plugins/Seen.py
index 5b9c16940..171084635 100644
--- a/plugins/Seen.py
+++ b/plugins/Seen.py
@@ -61,7 +61,7 @@ class SeenDB(plugins.ChannelUserDB):
     def serialize(self, v):
         return list(v)
 
-    def deserialize(self, L):
+    def deserialize(self, channel, id, L):
         (seen, saying) = L
         return (float(seen), saying)
     
diff --git a/src/plugins.py b/src/plugins.py
index d2e3f7648..4487d1e0e 100644
--- a/src/plugins.py
+++ b/src/plugins.py
@@ -209,7 +209,7 @@ class ChannelUserDB(ChannelUserDictionary):
                     except ValueError:
                         # We'll skip over this so, say, nicks can be kept here.
                         pass
-                    v = self.deserialize(t)
+                    v = self.deserialize(channel, id, t)
                     self[channel, id] = v
                 except Exception, e:
                     log.warning('Invalid line #%s in %s.',
@@ -236,7 +236,7 @@ class ChannelUserDB(ChannelUserDictionary):
         self.flush()
         self.clear()
 
-    def deserialize(self, L):
+    def deserialize(self, channel, id, L):
         """Should take a list of strings and return an object to be accessed
         via self.get(channel, id)."""
         raise NotImplementedError