diff --git a/test/test_autograd.py b/test/test_autograd.py
index dbd1454ff7459..76fe65ea86b17 100644
--- a/test/test_autograd.py
+++ b/test/test_autograd.py
@@ -11755,7 +11755,7 @@ def forward(ctx, inp):
             @staticmethod
             def backward(ctx, grad):
                 # Reentrant backward in child will take much longer.
-                reentrant_root.backward()
+                reentrant_root.backward(grad)
                 return grad
 
         # Parent gpu graph.