diff --git a/Chapter_03_Linear_Regression/Coding_linear_regression.ipynb b/Chapter_03_Linear_Regression/Coding_linear_regression.ipynb
index 352f3ae..14a7934 100644
--- a/Chapter_03_Linear_Regression/Coding_linear_regression.ipynb
+++ b/Chapter_03_Linear_Regression/Coding_linear_regression.ipynb
@@ -108,8 +108,8 @@
     "        price_per_room -= small_random_1\n",
     "        base_price -= small_random_2\n",
     "    if price < predicted_price and num_rooms < 0:\n",
-    "        price_per_room -= small_random_1\n",
-    "        base_price += small_random_2\n",
+    "        price_per_room += small_random_1\n",
+    "        base_price -= small_random_2\n",
     "    return price_per_room, base_price"
    ]
   },