diff --git a/src/index.html b/src/index.html
index 67e9101..40785db 100644
--- a/src/index.html
+++ b/src/index.html
@@ -715,6 +715,9 @@
                         <span>Be careful - it can be easy to make mistakes if you don't know what you're doing.</span>
                     </p>
                     <h3 id="entropy-notes">Entropy</h3>
+                    <p>
+                        <span>Entropy values should not include the BIP39 checksum. This is automatically added by the tool.</span>
+                    </p>
                     <p>
                         <span>
                             Entropy values must be sourced from a