diff --git a/Tools/modulator/Templates/object_tail b/Tools/modulator/Templates/object_tail
index 65d29d35b46..1d1334c9fe6 100644
--- a/Tools/modulator/Templates/object_tail
+++ b/Tools/modulator/Templates/object_tail
@@ -20,7 +20,7 @@ static PyTypeObject $Abbrev$type = {
 	$tp_as_sequence$,		/*tp_as_sequence*/
 	$tp_as_mapping$,		/*tp_as_mapping*/
 	(hashfunc)$tp_hash$,		/*tp_hash*/
-	(binaryfunc)$tp_call$,		/*tp_call*/
+	(ternaryfunc)$tp_call$,		/*tp_call*/
 	(reprfunc)$tp_str$,		/*tp_str*/
 
 	/* Space for future expansion */
diff --git a/Tools/modulator/Templates/object_tp_call b/Tools/modulator/Templates/object_tp_call
index 32a36154d8f..be4cc4bfa35 100644
--- a/Tools/modulator/Templates/object_tp_call
+++ b/Tools/modulator/Templates/object_tp_call
@@ -1,8 +1,9 @@
 
 static PyObject *
-$abbrev$_call(self, args)
+$abbrev$_call(self, args, kwargs)
 	$abbrev$object *self;
 	PyObject *args;
+	PyObject *kwargs;
 {
 	/* XXXX Return the result of calling self with argument args */
 }