diff --git a/interfaces/kits/js/src/mod_fs/class_stream/fs_stream.h b/interfaces/kits/js/src/mod_fs/class_stream/fs_stream.h
index 1ee619776dae44292694282b6c1673d8442f7b20..a6b9661e006e246e3396e9698695b2f74c8733c9 100644
--- a/interfaces/kits/js/src/mod_fs/class_stream/fs_stream.h
+++ b/interfaces/kits/js/src/mod_fs/class_stream/fs_stream.h
@@ -31,7 +31,7 @@ namespace ModuleFileIO {
 using namespace std;
 
 struct WriteOptions {
-    optional<int64_t> length = nullopt;
+    optional<size_t> length = nullopt;
     optional<int64_t> offset = nullopt;
     optional<std::string> encoding = nullopt;
 };
diff --git a/interfaces/kits/js/src/mod_fs/properties/ani/listfile_ani.cpp b/interfaces/kits/js/src/mod_fs/properties/ani/listfile_ani.cpp
index 2e81571906504e9d8b65602bd2f10025eeb28173..82fe98317fe46f05c291e898739b351470dcc96b 100644
--- a/interfaces/kits/js/src/mod_fs/properties/ani/listfile_ani.cpp
+++ b/interfaces/kits/js/src/mod_fs/properties/ani/listfile_ani.cpp
@@ -145,7 +145,7 @@ tuple<bool, optional<FsFileFilter>> ParseFilter(ani_env *env, ani_object obj)
         HILOGE("Illegal option.lastModifiedAfter parameter");
         return { false, move(filter) };
     }
-    filter.SetFileSizeOver(lastModifiedAfter);
+    filter.SetLastModifiedAfter(lastModifiedAfter);
 
     auto [succSuffix, suffix] = ParseArrayString(env, obj, "suffix");
     if (!succSuffix) {