diff --git a/notebooks/Dashboard.ipynb b/notebooks/Dashboard.ipynb
index 228a2c62598068229ae6119b56aeb407554c86cd..70fc4a796a40c5832a17c597966ac2767f20611f 100644
--- a/notebooks/Dashboard.ipynb
+++ b/notebooks/Dashboard.ipynb
@@ -51,7 +51,7 @@
     "\n",
     "# Identify countries with 100 or more cases\n",
     "countries_over_thresh = helper.countries_with_number_of_cases(jhu_frames_map, 'confirmed', 100)\n",
-    "# Filter out some very small countries\n",
+    "# Filter out some countries with very high case/population ratio\n",
     "countries_over_thresh = [c for c in countries_over_thresh if c not in set(['San Marino', 'Iceland'])]"
    ]
   },