diff --git a/src/class-elements/syntax/invalid/cls-decl-elements-invalid-syntax.template b/src/class-elements/syntax/invalid/cls-decl-elements-invalid-syntax.template
index 4ce748d237..427d5caf92 100644
--- a/src/class-elements/syntax/invalid/cls-decl-elements-invalid-syntax.template
+++ b/src/class-elements/syntax/invalid/cls-decl-elements-invalid-syntax.template
@@ -13,6 +13,6 @@ negative:
 
 throw "Test262: This statement should not be evaluated.";
 
-class C {
+class C /*{ heritage }*/ {
   /*{ elements }*/
 }
diff --git a/src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template b/src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
index 82bc66c4ec..87c961e691 100644
--- a/src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+++ b/src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
@@ -13,6 +13,6 @@ negative:
 
 throw "Test262: This statement should not be evaluated.";
 
-var C = class {
+var C = class /*{ heritage }*/ {
   /*{ elements }*/
 };
diff --git a/src/class-elements/syntax/valid/cls-decl-elements-valid-syntax.template b/src/class-elements/syntax/valid/cls-decl-elements-valid-syntax.template
index b662395afc..35030bbb29 100644
--- a/src/class-elements/syntax/valid/cls-decl-elements-valid-syntax.template
+++ b/src/class-elements/syntax/valid/cls-decl-elements-valid-syntax.template
@@ -8,6 +8,6 @@ path: language/statements/class/syntax/valid/
 features: [class]
 ---*/
 
-class C {
+class C /*{ heritage }*/ {
   /*{ elements }*/
 }
diff --git a/src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template b/src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
index 99bc9ac3c7..ff3e4f3674 100644
--- a/src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+++ b/src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
@@ -8,6 +8,6 @@ path: language/expressions/class/syntax/valid/
 features: [class]
 ---*/
 
-var C = class {
+var C = class /*{ heritage }*/ {
   /*{ elements }*/
 };