diff --git a/examples/cruise.ipynb b/examples/cruise.ipynb
index 4f1c152f9..4f12fb82d 100644
--- a/examples/cruise.ipynb
+++ b/examples/cruise.ipynb
@@ -189,7 +189,7 @@
     "ax.grid(True, linestyle='dotted')\n",
     "\n",
     "# Add labels\n",
-    "plt.text(11.5, 120, '$n$=1')\n",
+    "plt.text(11.5, 120, '$n$=1jfj')\n",
     "ax.text(24, 120, '$n$=2')\n",
     "ax.text(42.5, 120, '$n$=3')\n",
     "ax.text(58.5, 120, '$n$=4')\n",