diff --git a/examples/usgscsm_isis_cmp.ipynb b/examples/usgscsm_isis_cmp.ipynb
index 5913e33f4363691fb5dfea57ea08bca57cbb6840..ac4fc99cae0abc20ee71181bcb1268a99c15838f 100644
--- a/examples/usgscsm_isis_cmp.ipynb
+++ b/examples/usgscsm_isis_cmp.ipynb
@@ -7,6 +7,15 @@
     "# Comparing a USGSCSM and ISIS Camera Model"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Prerequisites\n",
+    "\n",
+    "This comparison notebook requires the installation of ISIS. Follow the instructions in the [ISIS Installation With Conda guide](https://astrogeology.usgs.gov/docs/how-to-guides/environment-setup-and-maintenance/installing-isis-via-anaconda/)."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 1,