diff --git a/Userland/Libraries/LibJS/Runtime/Intl/PluralRules.cpp b/Userland/Libraries/LibJS/Runtime/Intl/PluralRules.cpp
index 5eaafa6c95..0abb1ed2bd 100644
--- a/Userland/Libraries/LibJS/Runtime/Intl/PluralRules.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Intl/PluralRules.cpp
@@ -95,6 +95,12 @@ Unicode::PluralCategory plural_rule_select(StringView locale, Unicode::PluralFor
 
 // 16.5.3 ResolvePlural ( pluralRules, n ), https://tc39.es/ecma402/#sec-resolveplural
 Unicode::PluralCategory resolve_plural(GlobalObject& global_object, PluralRules const& plural_rules, Value number)
+{
+    return resolve_plural(global_object, plural_rules, plural_rules.type(), number);
+}
+
+// Non-standard overload of ResolvePlural to allow using the AO without an Intl.PluralRules object.
+Unicode::PluralCategory resolve_plural(GlobalObject& global_object, NumberFormatBase const& number_format, Unicode::PluralForm type, Value number)
 {
     // 1. Assert: Type(pluralRules) is Object.
     // 2. Assert: pluralRules has an [[InitializedPluralRules]] internal slot.
@@ -107,13 +113,12 @@ Unicode::PluralCategory resolve_plural(GlobalObject& global_object, PluralRules
     }
 
     // 5. Let locale be pluralRules.[[Locale]].
-    auto const& locale = plural_rules.locale();
+    auto const& locale = number_format.locale();
 
     // 6. Let type be pluralRules.[[Type]].
-    auto type = plural_rules.type();
 
     // 7. Let res be ! FormatNumericToString(pluralRules, n).
-    auto result = format_numeric_to_string(global_object, plural_rules, number);
+    auto result = format_numeric_to_string(global_object, number_format, number);
 
     // 8. Let s be res.[[FormattedString]].
     auto const& string = result.formatted_string;
diff --git a/Userland/Libraries/LibJS/Runtime/Intl/PluralRules.h b/Userland/Libraries/LibJS/Runtime/Intl/PluralRules.h
index 32614e28e5..1c11b5087a 100644
--- a/Userland/Libraries/LibJS/Runtime/Intl/PluralRules.h
+++ b/Userland/Libraries/LibJS/Runtime/Intl/PluralRules.h
@@ -32,5 +32,6 @@ private:
 Unicode::PluralOperands get_operands(String const& string);
 Unicode::PluralCategory plural_rule_select(StringView locale, Unicode::PluralForm type, Value number, Unicode::PluralOperands operands);
 Unicode::PluralCategory resolve_plural(GlobalObject& global_object, PluralRules const& plural_rules, Value number);
+Unicode::PluralCategory resolve_plural(GlobalObject& global_object, NumberFormatBase const& number_format, Unicode::PluralForm type, Value number);
 
 }