diff --git a/10_Manual_Feature_Engineering_code.ipynb b/10_Manual_Feature_Engineering_code.ipynb
index 6ca82bd..0a05590 100644
--- a/10_Manual_Feature_Engineering_code.ipynb
+++ b/10_Manual_Feature_Engineering_code.ipynb
@@ -718,7 +718,7 @@
     "predicted = (smf.ols(\"d2 ~ x_sq\", data=magic)\n",
     "                .fit()\n",
     "                .predict())\n",
-    "actual = comparison['d2']\n",
+    "actual = magic['d2']\n",
     "sns.distplot(predicted - actual, rug=True, \n",
     "             norm_hist = True, ax=ax2)\n",
     "\n",
@@ -827,7 +827,25 @@
    ]
   }
  ],
- "metadata": {},
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.8.5"
+  }
+ },
  "nbformat": 4,
  "nbformat_minor": 2
 }