diff --git a/src/interpreter/ByteCodeInterpreter.cpp b/src/interpreter/ByteCodeInterpreter.cpp
index 3b9347d3b..8e02eb768 100644
--- a/src/interpreter/ByteCodeInterpreter.cpp
+++ b/src/interpreter/ByteCodeInterpreter.cpp
@@ -4165,10 +4165,14 @@ NEVER_INLINE void InterpreterSlowPath::callFunctionComplexCase(ExecutionState& s
         // using this value on stack is trick for callConstructor util
         if (stackStorage[0].isPointerValue() && stackStorage[0].asPointerValue()) {
             result = stackStorage[0].asObject();
-            Object* proto = Object::getPrototypeFromConstructor(state, newTarget, [](ExecutionState& state, Context* constructorRealm) -> Object* {
-                return constructorRealm->globalObject()->objectPrototype();
-            });
-            result.asObject()->setPrototype(state, proto);
+            if (registerFile[code->m_calleeIndex].isObject() && registerFile[code->m_calleeIndex].asObject()->isScriptClassConstructorFunctionObject()) {
+                Object::callConstructor(state, registerFile[code->m_calleeIndex], result.asObject(), argc, argv, newTarget);
+            } else {
+                Object* proto = Object::getPrototypeFromConstructor(state, newTarget, [](ExecutionState& state, Context* constructorRealm) -> Object* {
+                    return constructorRealm->globalObject()->objectPrototype();
+                });
+                result.asObject()->setPrototype(state, proto);
+            }
         } else {
             result = Object::construct(state, registerFile[code->m_calleeIndex], argc, argv, newTarget);
         }
diff --git a/test/cctest/testapi.cpp b/test/cctest/testapi.cpp
index 6e68fc0fb..2d48dd13f 100644
--- a/test/cctest/testapi.cpp
+++ b/test/cctest/testapi.cpp
@@ -693,6 +693,20 @@ TEST(FunctionObject, CallConsturctor)
 
         return ValueRef::createUndefined();
     });
+
+    eval(g_context.get(), StringRef::createFromASCII("class callconstructortest3 extends Number { constructor() { super(); this.baseProperty = 123 } };"));
+    eval(g_context.get(), StringRef::createFromASCII("class callconstructortest4 extends callconstructortest3{ #pri; constructor() { super(); this.#pri = 123; } read() { return this.#pri + this.baseProperty; } }; this.testClass = callconstructortest4;"));
+
+    Evaluator::execute(g_context.get(), [](ExecutionStateRef* state) -> ValueRef* {
+        auto testClass = state->context()->globalObject()->get(state, StringRef::createFromASCII("testClass"));
+        ObjectRef* obj = ObjectRef::create(state);
+        testClass->callConstructor(state, obj, 0, nullptr);
+        EXPECT_TRUE(obj->get(state, StringRef::createFromASCII("read"))->call(state, obj, 0, nullptr)->asNumber() == 123 * 2);
+        EXPECT_TRUE(obj->instanceOf(state, testClass));
+        EXPECT_TRUE(obj->instanceOf(state, state->context()->globalObject()->number()));
+
+        return ValueRef::createUndefined();
+    });
 }
 
 TEST(ObjectTemplate, Basic1)