diff --git a/ex3-self_learning_quant.py b/ex3-self_learning_quant.py
index f3be78c..bfe6c47 100644
--- a/ex3-self_learning_quant.py
+++ b/ex3-self_learning_quant.py
@@ -83,7 +83,7 @@ def init_state(indata, test=False):
         joblib.dump(scaler, 'data/scaler.pkl')
     elif test == True:
         scaler = joblib.load('data/scaler.pkl')
-        xdata = np.expand_dims(scaler.fit_transform(xdata), axis=1)
+        xdata = np.expand_dims(scaler.transform(xdata), axis=1)
     state = xdata[0:1, 0:1, :]
     
     return state, xdata, close