diff --git a/Libraries/LibJS/Runtime/Intl/Locale.h b/Libraries/LibJS/Runtime/Intl/Locale.h
index e7c8960b8e8..4cc694f6d88 100644
--- a/Libraries/LibJS/Runtime/Intl/Locale.h
+++ b/Libraries/LibJS/Runtime/Intl/Locale.h
@@ -29,9 +29,9 @@ public:
     {
         // 15.2.2 Internal slots, https://tc39.es/ecma402/#sec-intl.locale-internal-slots
         // 1.3.2 Internal slots, https://tc39.es/proposal-intl-locale-info/#sec-intl.locale-internal-slots
-        // The value of the [[LocaleExtensionKeys]] internal slot is « "ca", "co", "fw", "hc", "kf", "kn", "nu" ».
-        // If %Intl.Collator%.[[RelevantExtensionKeys]] does not contain "kf", then remove "kf" from %Intl.Locale%.[[LocaleExtensionKeys]].
-        // If %Intl.Collator%.[[RelevantExtensionKeys]] does not contain "kn", then remove "kn" from %Intl.Locale%.[[LocaleExtensionKeys]].
+        // The value of the [[LocaleExtensionKeys]] internal slot is a List that must include all elements of
+        // « "ca", "co", "fw"sv, "hc", "nu" », must additionally include any element of « "kf", "kn" » that is also an
+        // element of %Intl.Collator%.[[RelevantExtensionKeys]], and must not include any other elements.
         return AK::Array { "ca"sv, "co"sv, "fw"sv, "hc"sv, "kf"sv, "kn"sv, "nu"sv };
     }