diff --git a/ecmascript/runtime.cpp b/ecmascript/runtime.cpp
index 51c415c17ef0d156803f736cd19cb09225ac8883..879ec1c68695da41232cb61d0ee324f60e671b0b 100644
--- a/ecmascript/runtime.cpp
+++ b/ecmascript/runtime.cpp
@@ -160,11 +160,8 @@ void Runtime::PostInitialization(const EcmaVM *vm)
 
 void Runtime::InitGCConfig(const JSRuntimeOptions &options)
 {
-    bool defaultValue = options.IsEnableCMCGC();
-    g_isEnableCMCGC = IsEnableCMCGC(defaultValue);
-    if (g_isEnableCMCGC) {
-        g_maxRegularHeapObjectSize = 32_KB;
-    }
+    g_isEnableCMCGC = true;
+    g_maxRegularHeapObjectSize = 32_KB;
 }
 
 void Runtime::DestroyIfLastVm()