diff --git a/Modules/_testmultiphase.c b/Modules/_testmultiphase.c
index 8090a485f4a..68404f2c6cd 100644
--- a/Modules/_testmultiphase.c
+++ b/Modules/_testmultiphase.c
@@ -23,11 +23,10 @@ Example_traverse(ExampleObject *self, visitproc visit, void *arg)
     return 0;
 }
 
-static int
+static void
 Example_finalize(ExampleObject *self)
 {
     Py_CLEAR(self->x_attr);
-    return 0;
 }
 
 static PyObject *
diff --git a/Modules/xxlimited.c b/Modules/xxlimited.c
index 5041ac8284a..5586989d039 100644
--- a/Modules/xxlimited.c
+++ b/Modules/xxlimited.c
@@ -47,11 +47,10 @@ Xxo_traverse(XxoObject *self, visitproc visit, void *arg)
     return 0;
 }
 
-static int
+static void
 Xxo_finalize(XxoObject *self)
 {
     Py_CLEAR(self->x_attr);
-    return 0;
 }
 
 static PyObject *