diff --git a/example/ssd_coco2017/eval.py b/example/ssd_coco2017/eval.py
index c0af504de2..d5e0d86b67 100644
--- a/example/ssd_coco2017/eval.py
+++ b/example/ssd_coco2017/eval.py
@@ -31,6 +31,7 @@ def ssd_eval(dataset_path, ckpt_path):
     net = SSD300(ssd_mobilenet_v2(), ConfigSSD(), is_training=False)
     print("Load Checkpoint!")
     param_dict = load_checkpoint(ckpt_path)
+    net.init_parameters_data()
     load_param_into_net(net, param_dict)
 
     net.set_train(False)