diff --git a/PaddleCV/deeplabv3+/train.py b/PaddleCV/deeplabv3+/train.py
index 5e983ed291f2b434a79ecefa7a3583f2741bd0ab..2cef945de72311f78ca313c37dd25f820fd7d3e2 100755
--- a/PaddleCV/deeplabv3+/train.py
+++ b/PaddleCV/deeplabv3+/train.py
@@ -145,6 +145,7 @@ with fluid.program_guard(tp, sp):
         fluid.layers.assign(np.array(
             [0.1], dtype=np.float32)))
     loss_mean = fluid.layers.reduce_mean(loss) / area
+    loss_mean.persistable = True
 
     opt = fluid.optimizer.Momentum(
         lr,