diff --git a/features.txt b/features.txt
index fede237eec..941688ea5f 100644
--- a/features.txt
+++ b/features.txt
@@ -260,6 +260,10 @@ ShadowRealm
 # https://github.com/tc39/proposal-array-find-from-last
 array-find-from-last
 
+# Intl.DurationFormat
+# https://github.com/tc39/proposal-intl-duration-format
+Intl.DurationFormat
+
 ## Standard language features
 #
 # Language features that have been included in a published version of the
diff --git a/test/intl402/DurationFormat/prototype/prototype_attributes.js b/test/intl402/DurationFormat/prototype/prototype_attributes.js
index 9b70af3a41..d5db12ef06 100644
--- a/test/intl402/DurationFormat/prototype/prototype_attributes.js
+++ b/test/intl402/DurationFormat/prototype/prototype_attributes.js
@@ -6,7 +6,7 @@ esid: sec-Intl.DurationFormat.prototype
 description: Prototype attributes verification
 info: |
   This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
-features: [Intl.DurationFormat.prototype]
+features: [Intl.DurationFormat]
 includes: [propertyHelper.js]
 ---*/
 
diff --git a/test/intl402/DurationFormat/prototype/toStringTag.js b/test/intl402/DurationFormat/prototype/toStringTag.js
index 49336c4409..47bf60b5e4 100644
--- a/test/intl402/DurationFormat/prototype/toStringTag.js
+++ b/test/intl402/DurationFormat/prototype/toStringTag.js
@@ -7,7 +7,7 @@ description: Checks prototype's toStringTag value
 info: |
   The initial value of the @@toStringTag property is the string value "Intl.DurationFormat".
   This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
-features: [Symbol.toStringTag]
+features: [Intl.DurationFormat, Symbol.toStringTag]
 includes: [propertyHelper.js]
 ---*/