diff --git a/python/paddle/fluid/tests/unittests/test_elementwise_mod_op.py b/python/paddle/fluid/tests/unittests/test_elementwise_mod_op.py
index d14974d61ea54..dfe5743f7933e 100644
--- a/python/paddle/fluid/tests/unittests/test_elementwise_mod_op.py
+++ b/python/paddle/fluid/tests/unittests/test_elementwise_mod_op.py
@@ -139,7 +139,7 @@ def test_dygraph(self):
 class TestRemainderInplaceOp(unittest.TestCase):
 
     def _executed_api(self, x, y, name=None):
-        return x.subtract_(y, name)
+        return x.remainder_(y, name)
 
 
 class TestRemainderInplaceBroadcastSuccess(unittest.TestCase):