diff --git a/ipython/robust_regression.ipynb b/ipython/robust_regression.ipynb
index 4ce53e5..f3bdedc 100644
--- a/ipython/robust_regression.ipynb
+++ b/ipython/robust_regression.ipynb
@@ -223,7 +223,7 @@
     "plt.plot(r, arctan, label='arctan')\n",
     "plt.xlabel(\"$r$\")\n",
     "plt.ylabel(r\"$\\rho(r^2)$\")\n",
-    "plt.legend(loc='upper left')"
+    "plt.legend(loc='upper left');"
    ]
   },
   {
@@ -476,7 +476,7 @@
     "plt.plot(t_test, y_robust, label='robust lsq')\n",
     "plt.xlabel('$t$')\n",
     "plt.ylabel('$y$')\n",
-    "plt.legend()"
+    "plt.legend();"
    ]
   },
   {