diff --git a/deploy/pptracking/cpp/include/jde_predictor.h b/deploy/pptracking/cpp/include/jde_predictor.h
index 32f5921061cd783a246eca29dff4ecb5241338c7..72d2360ac8c781511edda285f93887ae6ac763e7 100644
--- a/deploy/pptracking/cpp/include/jde_predictor.h
+++ b/deploy/pptracking/cpp/include/jde_predictor.h
@@ -57,6 +57,7 @@ class JDEPredictor {
     preprocessor_.Init(config_.preprocess_info_);
     LoadModel(model_dir, run_mode);
     this->conf_thresh_ = config_.conf_thresh_;
+    this->threshold_ = config_.conf_thresh_;
   }
 
   // Load Paddle inference model