diff --git a/Code/Day 1_Data_Preprocessing.ipynb b/Code/Day 1_Data_Preprocessing.ipynb
index a381729..8bd9e38 100644
--- a/Code/Day 1_Data_Preprocessing.ipynb	
+++ b/Code/Day 1_Data_Preprocessing.ipynb	
@@ -281,7 +281,7 @@
     "from sklearn.preprocessing import StandardScaler\n",
     "sc_X = StandardScaler()\n",
     "X_train = sc_X.fit_transform(X_train)\n",
-    "X_test = sc_X.fit_transform(X_test)\n",
+    "X_test = sc_X.transform(X_test)\n",
     "print(\"---------------------\")\n",
     "print(\"Step 6: Feature Scaling\")\n",
     "print(\"X_train\")\n",