diff --git a/interfaces/kits/js/src/mod_fs/properties/truncate_core.cpp b/interfaces/kits/js/src/mod_fs/properties/truncate_core.cpp
index 77784f111a0e71fb1c8d1470d940e982c6103c06..977c660aa3fe7e7aa870441f00948f0e171f727f 100644
--- a/interfaces/kits/js/src/mod_fs/properties/truncate_core.cpp
+++ b/interfaces/kits/js/src/mod_fs/properties/truncate_core.cpp
@@ -40,7 +40,7 @@ static bool ValidFileInfo(FileInfo &fileInfo)
 static int Truncate(FileInfo &fileInfo, int64_t truncateLen)
 {
     if (fileInfo.isPath) {
-        std::unique_ptr<uv_fs_t, decltype(FsUtils::FsReqCleanup) *> openReq = { new uv_fs_t, FsUtils::FsReqCleanup };
+        unique_ptr<uv_fs_t, decltype(FsUtils::FsReqCleanup) *> openReq = { new uv_fs_t, FsUtils::FsReqCleanup };
         if (!openReq) {
             HILOGE("Failed to request heap memory.");
             return ENOMEM;
@@ -50,8 +50,7 @@ static int Truncate(FileInfo &fileInfo, int64_t truncateLen)
         if (ret < 0) {
             return ret;
         }
-        std::unique_ptr<uv_fs_t, decltype(FsUtils::FsReqCleanup) *> ftruncateReq = { new uv_fs_t,
-            FsUtils::FsReqCleanup };
+        unique_ptr<uv_fs_t, decltype(FsUtils::FsReqCleanup) *> ftruncateReq = { new uv_fs_t, FsUtils::FsReqCleanup };
         if (!ftruncateReq) {
             HILOGE("Failed to request heap memory.");
             return ENOMEM;
@@ -62,8 +61,7 @@ static int Truncate(FileInfo &fileInfo, int64_t truncateLen)
             return ret;
         }
     } else {
-        std::unique_ptr<uv_fs_t, decltype(FsUtils::FsReqCleanup) *> ftruncateReq = { new uv_fs_t,
-            FsUtils::FsReqCleanup };
+        unique_ptr<uv_fs_t, decltype(FsUtils::FsReqCleanup) *> ftruncateReq = { new uv_fs_t, FsUtils::FsReqCleanup };
         if (!ftruncateReq) {
             HILOGE("Failed to request heap memory.");
             return ENOMEM;
@@ -77,7 +75,7 @@ static int Truncate(FileInfo &fileInfo, int64_t truncateLen)
     return ERRNO_NOERR;
 }
 
-FsResult<void> TruncateCore::DoTruncate(FileInfo &fileInfo, const std::optional<int64_t> &len)
+FsResult<void> TruncateCore::DoTruncate(FileInfo &fileInfo, const optional<int64_t> &len)
 {
     auto succ = ValidFileInfo(fileInfo);
     if (!succ) {