diff --git a/python/paddle/fluid/layers/nn.py b/python/paddle/fluid/layers/nn.py
index fde8a3154f3d521ac946e6e3bd2de4f7d15b3a2e..71df672fe46defb3f677503148bcbdfa166a4aef 100644
--- a/python/paddle/fluid/layers/nn.py
+++ b/python/paddle/fluid/layers/nn.py
@@ -4289,7 +4289,7 @@ 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},