diff --git a/CHANGELOG.md b/CHANGELOG.md
index 45079849..ddda0a25 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,8 +2,12 @@
 
 ## unreleased
 
+- Clarify that comparison for quoted keys is ordinal and doesn't do Unicode
+  normalization ([#993])
+
 - Clarify that tables typically cannot be nested infinitely [#1087]).
 
+[#993]: https://github.com/toml-lang/toml/pull/993
 [#1087]: https://github.com/toml-lang/toml/pull/1087
 
 ## 1.1.0 / 2025-12-18
diff --git a/toml.md b/toml.md
index e4119dcb..1ec0d8be 100644
--- a/toml.md
+++ b/toml.md
@@ -194,6 +194,20 @@ spelling = "favorite"
 "spelling" = "favourite"
 ```
 
+Quoted keys are considered identical if their code point sequences are the same.
+It is possible to create distinct keys that appear visually identical. Doing so
+is discouraged:
+
+```toml
+# VALID BUT DISCOURAGED
+
+# prénom = "Françoise", using pre-composed LATIN SMALL LETTER E WITH ACUTE (U+00E9, NFC)
+"pr\xe9nom" = "Françoise"
+
+# prénom = "Françoise", using COMBINING ACUTE ACCENT (U+0301, NFD)
+"pre\u0301nom" = "Françoise"
+```
+
 As long as a key hasn't been directly defined, you may still write to it and to
 names within it.