diff --git a/jerry-core/ecma/builtin-objects/ecma-builtin-async-function.inc.h b/jerry-core/ecma/builtin-objects/ecma-builtin-async-function.inc.h
index 104e07a9d..12f3c5e87 100644
--- a/jerry-core/ecma/builtin-objects/ecma-builtin-async-function.inc.h
+++ b/jerry-core/ecma/builtin-objects/ecma-builtin-async-function.inc.h
@@ -33,9 +33,14 @@ NUMBER_VALUE (LIT_MAGIC_STRING_LENGTH,
 
 /* ECMA-262 v10, 25.7.2.2 */
 OBJECT_VALUE (LIT_MAGIC_STRING_PROTOTYPE,
-              ECMA_BUILTIN_ID_ASYNC_FUNCTION,
+              ECMA_BUILTIN_ID_ASYNC_FUNCTION_PROTOTYPE,
               ECMA_PROPERTY_FIXED)
 
+/* ECMA-262 v11, 25.7.3.2 */
+STRING_VALUE (LIT_GLOBAL_SYMBOL_TO_STRING_TAG,
+              LIT_MAGIC_STRING_ASYNC_FUNCTION_UL,
+              ECMA_PROPERTY_FLAG_CONFIGURABLE)
+
 #endif /* ENABLED (JERRY_ESNEXT) */
 
 #include "ecma-builtin-helpers-macro-undefs.inc.h"
diff --git a/jerry-core/parser/js/byte-code.h b/jerry-core/parser/js/byte-code.h
index 91e2489fa..cc6f25779 100644
--- a/jerry-core/parser/js/byte-code.h
+++ b/jerry-core/parser/js/byte-code.h
@@ -907,11 +907,11 @@ typedef enum
   /* The following functions cannot be constructed (see CBC_FUNCTION_IS_CONSTRUCTABLE) */
   CBC_FUNCTION_SCRIPT, /**< script (global) function */
   CBC_FUNCTION_GENERATOR, /**< generator function */
-  CBC_FUNCTION_ASYNC, /**< async function */
   CBC_FUNCTION_ASYNC_GENERATOR, /**< async generator function */
 
   /* The following functions has no prototype (see CBC_FUNCTION_HAS_PROTOTYPE) */
   CBC_FUNCTION_ACCESSOR, /**< property accessor function */
+  CBC_FUNCTION_ASYNC, /**< async function */
   CBC_FUNCTION_METHOD, /**< method */
 
   /* The following functions are arrow function (see CBC_FUNCTION_IS_ARROW) */
diff --git a/tests/test262-esnext-excludelist.xml b/tests/test262-esnext-excludelist.xml
index ec55531c5..caf2cfbbe 100644
--- a/tests/test262-esnext-excludelist.xml
+++ b/tests/test262-esnext-excludelist.xml
@@ -2,10 +2,6 @@
 <excludeList>
   <!-- Uncategorized failing tests -->
   <test id="built-ins/Array/prototype/splice/property-traps-order-with-species.js"><reason></reason></test>
-  <test id="built-ins/AsyncFunction/AsyncFunction-is-subclass.js"><reason></reason></test>
-  <test id="built-ins/AsyncFunction/AsyncFunctionPrototype-prototype.js"><reason></reason></test>
-  <test id="built-ins/AsyncFunction/AsyncFunctionPrototype-to-string.js"><reason></reason></test>
-  <test id="built-ins/AsyncFunction/instance-prototype-property.js"><reason></reason></test>
   <test id="built-ins/BigInt/asIntN/arithmetic.js"><reason></reason></test>
   <test id="built-ins/BigInt/asIntN/asIntN.js"><reason></reason></test>
   <test id="built-ins/BigInt/asIntN/bigint-tobigint-errors.js"><reason></reason></test>
@@ -97,7 +93,6 @@
   <test id="built-ins/Number/prototype/toPrecision/exponential.js"><reason></reason></test>
   <test id="built-ins/Object/entries/order-after-define-property.js"><reason></reason></test>
   <test id="built-ins/Object/keys/order-after-define-property.js"><reason></reason></test>
-  <test id="built-ins/Object/prototype/toString/symbol-tag-non-str-proxy-function.js"><reason></reason></test>
   <test id="built-ins/Promise/all/invoke-resolve-get-error.js"><reason>Test expects incorrect call order</reason></test>
   <test id="built-ins/Promise/all/resolve-non-callable.js"><reason>Test expects incorrect call order</reason></test>
   <test id="built-ins/Promise/race/invoke-resolve-get-error.js"><reason>Test expects incorrect call order</reason></test>
@@ -504,7 +499,6 @@
   <test id="language/statements/class/dstr/meth-static-ary-init-iter-no-close.js"><reason></reason></test>
   <test id="language/statements/class/dstr/meth-static-dflt-ary-init-iter-no-close.js"><reason></reason></test>
   <test id="language/statements/class/subclass/default-constructor-spread-override.js"><reason></reason></test>
-  <test id="language/statements/class/subclass/superclass-async-function.js"><reason></reason></test>
   <test id="language/statements/class/super/in-constructor-superproperty-evaluation.js"><reason></reason></test>
   <test id="language/statements/const/dstr/ary-init-iter-no-close.js"><reason></reason></test>
   <test id="language/statements/do-while/cptn-abrupt-empty.js"><reason></reason></test>