diff --git a/test/built-ins/Set/prototype/add/does-not-have-setdata-internal-slot-weakset.js b/test/built-ins/Set/prototype/add/does-not-have-setdata-internal-slot-weakset.js
index 8d7734f17a80f75011181b97939115dfe3fc29ff..601345e728f156978bf28bc6c1445c3029d98da0 100644
--- a/test/built-ins/Set/prototype/add/does-not-have-setdata-internal-slot-weakset.js
+++ b/test/built-ins/Set/prototype/add/does-not-have-setdata-internal-slot-weakset.js
@@ -8,7 +8,7 @@ description: >
     ...
     3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
     ...
-
+features: [WeakSet]
 ---*/
 
 assert.throws(TypeError, function() {
diff --git a/test/built-ins/Set/prototype/clear/does-not-have-setdata-internal-slot-weakset.js b/test/built-ins/Set/prototype/clear/does-not-have-setdata-internal-slot-weakset.js
index 8c603efebcedbb132ae57f4102621dc64f7fcece..00d659aa9668fb5dc74c2bb1297235bd2f297686 100644
--- a/test/built-ins/Set/prototype/clear/does-not-have-setdata-internal-slot-weakset.js
+++ b/test/built-ins/Set/prototype/clear/does-not-have-setdata-internal-slot-weakset.js
@@ -8,7 +8,7 @@ description: >
     ...
     3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
     ...
-
+features: [WeakSet]
 ---*/
 
 assert.throws(TypeError, function() {
diff --git a/test/built-ins/Set/prototype/delete/does-not-have-setdata-internal-slot-weakset.js b/test/built-ins/Set/prototype/delete/does-not-have-setdata-internal-slot-weakset.js
index 0a644eb3eec4320d6d9ec2a1c58a0ee104dbf053..5e436f9f91780b7507c3b0720f7b1c73d2443721 100644
--- a/test/built-ins/Set/prototype/delete/does-not-have-setdata-internal-slot-weakset.js
+++ b/test/built-ins/Set/prototype/delete/does-not-have-setdata-internal-slot-weakset.js
@@ -8,7 +8,7 @@ description: >
     ...
     3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
     ...
-
+features: [WeakSet]
 ---*/
 
 assert.throws(TypeError, function() {
diff --git a/test/built-ins/Set/prototype/entries/does-not-have-setdata-internal-slot-weakset.js b/test/built-ins/Set/prototype/entries/does-not-have-setdata-internal-slot-weakset.js
index e2dfc406a6a8f5bdc4f1d6fd2010ce198413f22e..2c8c888f8fd8da0a267b77a275f35b10f8a60808 100644
--- a/test/built-ins/Set/prototype/entries/does-not-have-setdata-internal-slot-weakset.js
+++ b/test/built-ins/Set/prototype/entries/does-not-have-setdata-internal-slot-weakset.js
@@ -14,6 +14,7 @@ description: >
     ...
     2. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
     ...
+features: [WeakSet]
 ---*/
 
 assert.throws(TypeError, function() {
diff --git a/test/built-ins/Set/prototype/forEach/does-not-have-setdata-internal-slot-weakset.js b/test/built-ins/Set/prototype/forEach/does-not-have-setdata-internal-slot-weakset.js
index 9e19cd2638d981b97fc5daeae8090d7a04e65030..8dca9716fc00564db1256f407d9e887e48f43818 100644
--- a/test/built-ins/Set/prototype/forEach/does-not-have-setdata-internal-slot-weakset.js
+++ b/test/built-ins/Set/prototype/forEach/does-not-have-setdata-internal-slot-weakset.js
@@ -8,7 +8,7 @@ description: >
     ...
     3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
     ...
-
+features: [WeakSet]
 ---*/
 
 assert.throws(TypeError, function() {
diff --git a/test/built-ins/Set/prototype/has/does-not-have-setdata-internal-slot-weakset.js b/test/built-ins/Set/prototype/has/does-not-have-setdata-internal-slot-weakset.js
index cc467f112cf1b9b565aa35ab91f70b765085c1ec..8a27404e0a1889d7dbbfbf5b90512ee767ee0e98 100644
--- a/test/built-ins/Set/prototype/has/does-not-have-setdata-internal-slot-weakset.js
+++ b/test/built-ins/Set/prototype/has/does-not-have-setdata-internal-slot-weakset.js
@@ -8,7 +8,7 @@ description: >
     ...
     3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
     ...
-
+features: [WeakSet]
 ---*/
 
 assert.throws(TypeError, function() {
diff --git a/test/built-ins/Set/prototype/values/does-not-have-setdata-internal-slot-weakset.js b/test/built-ins/Set/prototype/values/does-not-have-setdata-internal-slot-weakset.js
index dce6c250b2183766d9ab474b3a4b0d03c4bb19db..6a521b5ee2750ff2cf15762e1e047ac30aa83f7a 100644
--- a/test/built-ins/Set/prototype/values/does-not-have-setdata-internal-slot-weakset.js
+++ b/test/built-ins/Set/prototype/values/does-not-have-setdata-internal-slot-weakset.js
@@ -14,6 +14,7 @@ description: >
     ...
     2. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
     ...
+features: [WeakSet]
 ---*/
 
 assert.throws(TypeError, function() {