From fc7d0ca1cd64cca9109756e693145ceea9c60c3b Mon Sep 17 00:00:00 2001
From: fengjiayi <fengjiayi@baidu.com>
Date: Tue, 26 Dec 2017 16:09:01 +0800
Subject: [PATCH] fix errors

---
 python/paddle/v2/fluid/backward.py | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/python/paddle/v2/fluid/backward.py b/python/paddle/v2/fluid/backward.py
index 9bc3e73f5..e05750c5b 100644
--- a/python/paddle/v2/fluid/backward.py
+++ b/python/paddle/v2/fluid/backward.py
@@ -158,11 +158,9 @@ def _append_backward_ops_(target,
                 op_type="fill_constant",
                 inputs={},
                 outputs={"Out": [grad_target_name]},
-                attrs={
-                    "shape": [1],
-                    "value": 1.0,
-                    "dtype": core.DataType.FP32
-                }))
+                attrs={"shape": [1],
+                       "value": 1.0,
+                       "dtype": target.dtype}))
     for op_desc in grad_op_descs:
         new_op_desc = target_block.desc.append_op()
         new_op_desc.copy_from(op_desc)
-- 
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