diff --git a/interfaces/kits/js/src/common/ani_helper/ani_signature.cpp b/interfaces/kits/js/src/common/ani_helper/ani_signature.cpp
index 87ee3dfe32090a7ff846dd0c7092f252b133542d..4dba2490cecd1a100bbb54672f52a8208b7ae576 100644
--- a/interfaces/kits/js/src/common/ani_helper/ani_signature.cpp
+++ b/interfaces/kits/js/src/common/ani_helper/ani_signature.cpp
@@ -115,6 +115,9 @@ const Type FS::WatchEventInner::classType = Builder::BuildClass("@ohos.file.fs.W
 const string FS::WatchEventInner::classDesc = FS::WatchEventInner::classType.Descriptor();
 const string FS::WatchEventInner::ctorSig =
     Builder::BuildSignatureDescriptor({ BuiltInTypes::stringType, BasicTypes::doubleType, BasicTypes::doubleType });
+// FS::ReadStreamOptionsInner
+const Type FS::ReadStreamOptionsInner::classType = Builder::BuildClass("@ohos.file.fs.ReadStreamOptionsInner");
+const string FS::ReadStreamOptionsInner::classDesc = FS::ReadStreamOptionsInner::classType.Descriptor();
 // Impl::EnvironmentImpl
 const Type Impl::EnvironmentImpl::classType = Builder::BuildClass("@ohos.file.environment.EnvironmentImpl");
 const string Impl::EnvironmentImpl::classDesc = Impl::EnvironmentImpl::classType.Descriptor();
diff --git a/interfaces/kits/js/src/common/ani_helper/ani_signature.h b/interfaces/kits/js/src/common/ani_helper/ani_signature.h
index c05470dc09694c075f7eb1eded41dadb52f42070..66beb1561242c412829dd034ffd059b18d59b05e 100644
--- a/interfaces/kits/js/src/common/ani_helper/ani_signature.h
+++ b/interfaces/kits/js/src/common/ani_helper/ani_signature.h
@@ -176,6 +176,11 @@ struct WatchEventInner : public BaseType {
     static const string ctorSig;
 };
 
+struct ReadStreamOptionsInner : public BaseType {
+    static const Type classType;
+    static const string classDesc;
+};
+
 } // namespace FS
 
 namespace Impl {
diff --git a/interfaces/kits/js/src/mod_fs/class_randomaccessfile/ani/randomaccessfile_ani.cpp b/interfaces/kits/js/src/mod_fs/class_randomaccessfile/ani/randomaccessfile_ani.cpp
index 335092ba87a051121bc840045913417e126f72c9..dceca8a857ab140d84abc2e3069b1aec058310d2 100644
--- a/interfaces/kits/js/src/mod_fs/class_randomaccessfile/ani/randomaccessfile_ani.cpp
+++ b/interfaces/kits/js/src/mod_fs/class_randomaccessfile/ani/randomaccessfile_ani.cpp
@@ -283,14 +283,16 @@ static ani_string GetFilePath(ani_env *env, const int fd)
 
 static ani_object CreateReadStreamOptions(ani_env *env, int64_t start, int64_t end)
 {
-    static const char *className = "L@ohos/file/fs/ReadStreamOptionsInner;";
+    static const char *className = FS::ReadStreamOptionsInner::classDesc.c_str();
     ani_class cls;
     if (ANI_OK != env->FindClass(className, &cls)) {
         HILOGE("Cannot find class %s", className);
         return nullptr;
     }
     ani_method ctor;
-    if (ANI_OK != env->Class_FindMethod(cls, "<ctor>", ":V", &ctor)) {
+    auto ctorDesc = BaseType::ctorDesc.c_str();
+    auto ctorSig = BaseType::ctorSig0.c_str();
+    if (ANI_OK != env->Class_FindMethod(cls, ctorDesc, ctorSig, &ctor)) {
         HILOGE("Cannot find constructor method for class %s", className);
         return nullptr;
     }