diff --git a/docs/notebooks/misc_recipes.ipynb b/docs/notebooks/misc_recipes.ipynb
index 7a791ae..0286df4 100644
--- a/docs/notebooks/misc_recipes.ipynb
+++ b/docs/notebooks/misc_recipes.ipynb
@@ -605,8 +605,8 @@
     "        self.a = 1.0\n",
     "\n",
     "    def __call__(self, x, perturb):\n",
-    "        b = self.a + x + perturb[\"b\"]  # perturb\n",
-    "        c = 2 * b + perturb[\"c\"]  # perturb\n",
+    "        b = self.a + x + perturb[\"b\"]\n",
+    "        c = 2 * b + perturb[\"c\"]\n",
     "        e = 4 * c\n",
     "        return e\n",
     "\n",