diff --git a/datasette/filters.py b/datasette/filters.py
index 12194be1..efe014ae 100644
--- a/datasette/filters.py
+++ b/datasette/filters.py
@@ -61,9 +61,6 @@ class InFilter(Filter):
     key = "in"
     display = "in"
 
-    def __init__(self):
-        pass
-
     def split_value(self, value):
         if value.startswith("["):
             return json.loads(value)