diff --git a/imperative/python/test/integration/test_save_load.py b/imperative/python/test/integration/test_save_load.py
index 11bbcf58..b4d2d681 100644
--- a/imperative/python/test/integration/test_save_load.py
+++ b/imperative/python/test/integration/test_save_load.py
@@ -9,6 +9,7 @@ from megengine.module import Module
 
 class Simple(Module):
     def __init__(self):
+        super().__init__()
         self.a = Parameter(1.23, dtype=np.float32)
 
     def forward(self, x):