diff --git a/notebooks/examples.ipynb b/notebooks/examples.ipynb
index e5e83c9..adb0e56 100644
--- a/notebooks/examples.ipynb
+++ b/notebooks/examples.ipynb
@@ -287,11 +287,7 @@
     "\n",
     "layers = plot(\n",
     "    'Praça Ferreira do Amaral, Macau', radius = 1100,\n",
-    "    \n",
     "    ax = ax,\n",
-    "\n",
-    "    backup = layers,\n",
-    "    \n",
     "    layers = {\n",
     "            'perimeter': {},\n",
     "            'streets': {\n",
@@ -3802,7 +3798,7 @@
     "    layers['streets'] = layers['streets'].buffer(0).intersection(boundary)\n",
     "    return layers\n",
     "\n",
-    "backup = plot(\n",
+    "layers = plot(\n",
     "    'Palmanova, Italy', radius = 970,\n",
     "    \n",
     "    ax = ax,\n",
@@ -3891,7 +3887,7 @@
     "\n",
     "fig, ax = plt.subplots(figsize = (12, 12), constrained_layout = True)\n",
     "\n",
-    "backup = plot(\n",
+    "layers = plot(\n",
     "    'Erbil, Iraq', radius = 1500,\n",
     "    \n",
     "    ax = ax,\n",