diff --git a/multi_participants/cong_incong/cong_incong.py b/multi_participants/cong_incong/cong_incong.py
index ce01474..89c3623 100644
--- a/multi_participants/cong_incong/cong_incong.py
+++ b/multi_participants/cong_incong/cong_incong.py
@@ -49,7 +49,7 @@
     ml_df = mr.create_ml_df(avg_trials, labels)
 
     # train models
-    X_train, X_test, y_train, y_test = mr.prepare_ml_df(ml_df)
+    X_train, X_test, y_train, y_test = mr.prepare_ml_df(ml_df, scale=False)
 
     acc_svc, precision_svc = mr.train_svc(X_train, X_test, y_train, y_test)