diff --git a/mirrors/fields.py b/mirrors/fields.py
index dc38c6b9..ceb20a7e 100644
--- a/mirrors/fields.py
+++ b/mirrors/fields.py
@@ -43,5 +43,5 @@ def formfield(self, **kwargs):
         defaults.update(kwargs)
         return super(IPNetworkField, self).formfield(**defaults)
 
-    def from_db_value(self, value, expression, connection, context):
+    def from_db_value(self, value, expression, connection):
         return self.to_python(value)