diff --git a/test/language/expressions/call/tco-cross-realm-class-construct.js b/test/language/expressions/call/tco-cross-realm-class-construct.js
index 08361636b3..89ea817ecf 100644
--- a/test/language/expressions/call/tco-cross-realm-class-construct.js
+++ b/test/language/expressions/call/tco-cross-realm-class-construct.js
@@ -23,7 +23,7 @@ info: |
     5. Assert: calleeContext is now the running execution context.
     ...
 
-features: [tail-call-optimization, class]
+features: [tail-call-optimization, class, cross-realm]
 ---*/
 
 // - The class constructor call is in a valid tail-call position, which means PrepareForTailCall is performed.
diff --git a/test/language/expressions/call/tco-cross-realm-class-derived-construct.js b/test/language/expressions/call/tco-cross-realm-class-derived-construct.js
index b478884234..1dfa7b4291 100644
--- a/test/language/expressions/call/tco-cross-realm-class-derived-construct.js
+++ b/test/language/expressions/call/tco-cross-realm-class-derived-construct.js
@@ -23,7 +23,7 @@ info: |
     5. Assert: calleeContext is now the running execution context.
     ...
 
-features: [tail-call-optimization, class]
+features: [tail-call-optimization, class, cross-realm]
 ---*/
 
 // - The class constructor call is in a valid tail-call position, which means PrepareForTailCall is performed.
diff --git a/test/language/expressions/call/tco-cross-realm-fun-call.js b/test/language/expressions/call/tco-cross-realm-fun-call.js
index 5a254a02b3..9f5a611e91 100644
--- a/test/language/expressions/call/tco-cross-realm-fun-call.js
+++ b/test/language/expressions/call/tco-cross-realm-fun-call.js
@@ -22,7 +22,7 @@ info: |
     5. Assert: calleeContext is now the running execution context.
     ...
 
-features: [tail-call-optimization, class]
+features: [tail-call-optimization, class, cross-realm]
 ---*/
 
 // - The class constructor call is in a valid tail-call position, which means PrepareForTailCall is performed.
diff --git a/test/language/expressions/call/tco-cross-realm-fun-construct.js b/test/language/expressions/call/tco-cross-realm-fun-construct.js
index f026a8d441..11c2a582f1 100644
--- a/test/language/expressions/call/tco-cross-realm-fun-construct.js
+++ b/test/language/expressions/call/tco-cross-realm-fun-construct.js
@@ -22,7 +22,7 @@ info: |
     5. Assert: calleeContext is now the running execution context.
     ...
 
-features: [tail-call-optimization, class]
+features: [tail-call-optimization, class, cross-realm]
 ---*/
 
 // - The class constructor call is in a valid tail-call position, which means PrepareForTailCall is performed.
diff --git a/test/language/expressions/class/private-getter-brand-check-multiple-evaluations-of-class-realm-function-ctor.js b/test/language/expressions/class/private-getter-brand-check-multiple-evaluations-of-class-realm-function-ctor.js
index 48ed9a8417..f486a2cf39 100644
--- a/test/language/expressions/class/private-getter-brand-check-multiple-evaluations-of-class-realm-function-ctor.js
+++ b/test/language/expressions/class/private-getter-brand-check-multiple-evaluations-of-class-realm-function-ctor.js
@@ -16,7 +16,7 @@ info: |
   PrivateBrandCheck(O, P)
     1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
       a. Throw a TypeError exception.
-features: [class, class-methods-private]
+features: [class, class-methods-private, cross-realm]
 ---*/
 
 let classStringExpression = `
diff --git a/test/language/expressions/class/private-getter-brand-check-multiple-evaluations-of-class-realm.js b/test/language/expressions/class/private-getter-brand-check-multiple-evaluations-of-class-realm.js
index 5f3b3b5298..7991e7c7f7 100644
--- a/test/language/expressions/class/private-getter-brand-check-multiple-evaluations-of-class-realm.js
+++ b/test/language/expressions/class/private-getter-brand-check-multiple-evaluations-of-class-realm.js
@@ -16,7 +16,7 @@ info: |
   PrivateBrandCheck(O, P)
     1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
       a. Throw a TypeError exception.
-features: [class, class-methods-private]
+features: [class, class-methods-private, cross-realm]
 flags: [noStrict]
 ---*/
 
diff --git a/test/language/expressions/class/private-method-brand-check-multiple-evaluations-of-class-realm-function-ctor.js b/test/language/expressions/class/private-method-brand-check-multiple-evaluations-of-class-realm-function-ctor.js
index 71c536a114..514cb2f553 100644
--- a/test/language/expressions/class/private-method-brand-check-multiple-evaluations-of-class-realm-function-ctor.js
+++ b/test/language/expressions/class/private-method-brand-check-multiple-evaluations-of-class-realm-function-ctor.js
@@ -16,7 +16,7 @@ info: |
   PrivateBrandCheck(O, P)
     1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
       a. Throw a TypeError exception.
-features: [class, class-methods-private]
+features: [class, class-methods-private, cross-realm]
 ---*/
 
 let classStringExpression = `
diff --git a/test/language/expressions/class/private-method-brand-check-multiple-evaluations-of-class-realm.js b/test/language/expressions/class/private-method-brand-check-multiple-evaluations-of-class-realm.js
index 929e9c0e4b..7a887c45b0 100644
--- a/test/language/expressions/class/private-method-brand-check-multiple-evaluations-of-class-realm.js
+++ b/test/language/expressions/class/private-method-brand-check-multiple-evaluations-of-class-realm.js
@@ -16,7 +16,7 @@ info: |
   PrivateBrandCheck(O, P)
     1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
       a. Throw a TypeError exception.
-features: [class, class-methods-private]
+features: [class, class-methods-private, cross-realm]
 flags: [noStrict]
 ---*/
 
diff --git a/test/language/expressions/class/private-setter-brand-check-multiple-evaluations-of-class-realm-function-ctor.js b/test/language/expressions/class/private-setter-brand-check-multiple-evaluations-of-class-realm-function-ctor.js
index 1227a412f2..9f42680d91 100644
--- a/test/language/expressions/class/private-setter-brand-check-multiple-evaluations-of-class-realm-function-ctor.js
+++ b/test/language/expressions/class/private-setter-brand-check-multiple-evaluations-of-class-realm-function-ctor.js
@@ -16,7 +16,7 @@ info: |
   PrivateBrandCheck(O, P)
     1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
       a. Throw a TypeError exception.
-features: [class, class-methods-private]
+features: [class, class-methods-private, cross-realm]
 ---*/
 
 let classStringExpression = `
diff --git a/test/language/expressions/class/private-setter-brand-check-multiple-evaluations-of-class-realm.js b/test/language/expressions/class/private-setter-brand-check-multiple-evaluations-of-class-realm.js
index d73056f4e6..6a943c9238 100644
--- a/test/language/expressions/class/private-setter-brand-check-multiple-evaluations-of-class-realm.js
+++ b/test/language/expressions/class/private-setter-brand-check-multiple-evaluations-of-class-realm.js
@@ -16,7 +16,7 @@ info: |
   PrivateBrandCheck(O, P)
     1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
       a. Throw a TypeError exception.
-features: [class, class-methods-private]
+features: [class, class-methods-private, cross-realm]
 flags: [noStrict]
 ---*/
 
diff --git a/test/language/expressions/class/private-static-field-multiple-evaluations-of-class-realm.js b/test/language/expressions/class/private-static-field-multiple-evaluations-of-class-realm.js
index 0c12f51bc8..b59d32a84c 100644
--- a/test/language/expressions/class/private-static-field-multiple-evaluations-of-class-realm.js
+++ b/test/language/expressions/class/private-static-field-multiple-evaluations-of-class-realm.js
@@ -35,7 +35,7 @@ info: |
     ...
     8. If fieldName is a Private Name,
       a. Perform ? PrivateFieldAdd(fieldName, receiver, initValue).
-features: [class, class-static-fields-private]
+features: [class, class-static-fields-private, cross-realm]
 flags: [noStrict]
 ---*/
 
diff --git a/test/language/expressions/class/private-static-getter-multiple-evaluations-of-class-realm.js b/test/language/expressions/class/private-static-getter-multiple-evaluations-of-class-realm.js
index 79b0920001..e97e32631a 100644
--- a/test/language/expressions/class/private-static-getter-multiple-evaluations-of-class-realm.js
+++ b/test/language/expressions/class/private-static-getter-multiple-evaluations-of-class-realm.js
@@ -19,7 +19,7 @@ info: |
   PrivateBrandCheck(O, P)
     1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
       a. Throw a TypeError exception.
-features: [class, class-static-methods-private]
+features: [class, class-static-methods-private, cross-realm]
 flags: [noStrict]
 ---*/
 
diff --git a/test/language/expressions/class/private-static-method-brand-check-multiple-evaluations-of-class-realm.js b/test/language/expressions/class/private-static-method-brand-check-multiple-evaluations-of-class-realm.js
index b5e25b9001..bfef8f6e14 100644
--- a/test/language/expressions/class/private-static-method-brand-check-multiple-evaluations-of-class-realm.js
+++ b/test/language/expressions/class/private-static-method-brand-check-multiple-evaluations-of-class-realm.js
@@ -19,7 +19,7 @@ info: |
   PrivateBrandCheck(O, P)
     1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
       a. Throw a TypeError exception.
-features: [class, class-static-methods-private]
+features: [class, class-static-methods-private, cross-realm]
 flags: [noStrict]
 ---*/
 
diff --git a/test/language/expressions/class/private-static-setter-multiple-evaluations-of-class-realm.js b/test/language/expressions/class/private-static-setter-multiple-evaluations-of-class-realm.js
index acaf7cfc5c..412d37a2e7 100644
--- a/test/language/expressions/class/private-static-setter-multiple-evaluations-of-class-realm.js
+++ b/test/language/expressions/class/private-static-setter-multiple-evaluations-of-class-realm.js
@@ -19,7 +19,7 @@ info: |
   PrivateBrandCheck(O, P)
     1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
       a. Throw a TypeError exception.
-features: [class, class-static-methods-private]
+features: [class, class-static-methods-private, cross-realm]
 flags: [noStrict]
 ---*/