diff --git a/ch3/jupyter-notebooks/components.ipynb b/ch3/jupyter-notebooks/components.ipynb
index d9587d7..f5b57cf 100644
--- a/ch3/jupyter-notebooks/components.ipynb
+++ b/ch3/jupyter-notebooks/components.ipynb
@@ -220,7 +220,30 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 45,
+   "execution_count": 53,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[]"
+      ]
+     },
+     "execution_count": 53,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "filters_df = {\n",
+    "    \"dataframe.age\": {\"$eq\": 35}\n",
+    "}\n",
+    "docstore.filter_documents(filters=filters_df)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 54,
    "metadata": {},
    "outputs": [
     {
@@ -232,16 +255,16 @@
        " Document(id='4', content=None, dataframe=None, blob=ByteStream(data=b'Your binary data here', metadata={}, mime_type='application/pdf'), meta={'file_name': 'example.pdf', 'file_type': 'PDF'}, score=None)]"
       ]
      },
-     "execution_count": 45,
+     "execution_count": 54,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "filters_exact_match = {\n",
+    "filters_none = {\n",
     "    \"content\": {\"$eq\": None}\n",
     "}\n",
-    "docstore.filter_documents(filters=filters_exact_match)\n"
+    "docstore.filter_documents(filters=filters_none)\n"
    ]
   },
   {