diff --git a/python/paddle/fluid/layers/nn.py b/python/paddle/fluid/layers/nn.py
index 982340d7eeb872597f61b5ca351da019c65dd72f..2c1f9888282188b8066924cef0108ee697f91da6 100644
--- a/python/paddle/fluid/layers/nn.py
+++ b/python/paddle/fluid/layers/nn.py
@@ -4242,7 +4242,7 @@ def random_crop(x, shape, seed=None):
     seed_out = helper.create_tmp_variable(dtype="int64")
     helper.append_op(
         type="random_crop",
-        inputs={"X": input,
+        inputs={"X": x,
                 "Seed": seed},
         outputs={"Out": out,
                  "SeedOut": seed_out},