diff --git a/site/en/examples/chat_calculator.ipynb b/site/en/examples/chat_calculator.ipynb
index 7e154edd7..e27d64c54 100644
--- a/site/en/examples/chat_calculator.ipynb
+++ b/site/en/examples/chat_calculator.ipynb
@@ -360,7 +360,7 @@
         "    return None, None\n",
         "  # keep everything before opening the calc tag.\n",
         "  text, remainder = result.split('<calc>', 1)\n",
-        "  # drop everything after closing the c alc tag.\n",
+        "  # drop everything after closing the calc tag.\n",
         "  expression, junk = remainder.split('</calc>', 1)\n",
         "\n",
         "  # Remove the units like \"7 cats / hour\" -> \"7\"\n",