diff --git a/interfaces/kits/js/src/mod_fs/class_atomicfile/ani/atomicfile_ani.cpp b/interfaces/kits/js/src/mod_fs/class_atomicfile/ani/atomicfile_ani.cpp
index 08034bb66cbf566f3d8f98500b4ec5a161f4644a..bae624ad1ecf5f3a7256eb9183b7291aa058d90d 100644
--- a/interfaces/kits/js/src/mod_fs/class_atomicfile/ani/atomicfile_ani.cpp
+++ b/interfaces/kits/js/src/mod_fs/class_atomicfile/ani/atomicfile_ani.cpp
@@ -280,11 +280,13 @@ ani_object AtomicFileAni::StartWrite(ani_env *env, [[maybe_unused]] ani_object o
     }
 
     char *tmpfile = const_cast<char *>(entity->newFileName.c_str());
-    if (mkstemp(tmpfile) == -1) {
+    int fd = mkstemp(tmpfile);
+    if (fd == -1) {
         HILOGE("Fail to create tmp file err:%{public}d!", errno);
         ErrorHandler::Throw(env, ENOENT);
         return nullptr;
     }
+    close(fd);
 
     ani_object writeStream = CreateStream(env, object, WRITE_STREAM_CLASS, entity->newFileName);
     if (writeStream == nullptr) {
diff --git a/interfaces/kits/js/src/mod_fs/class_atomicfile/fs_atomicfile.cpp b/interfaces/kits/js/src/mod_fs/class_atomicfile/fs_atomicfile.cpp
index 21200a84226f2b0370ef0f13535cb9fc51f2688d..a9b81c412bb4a18b694ba0d3b1e859152a27d337 100644
--- a/interfaces/kits/js/src/mod_fs/class_atomicfile/fs_atomicfile.cpp
+++ b/interfaces/kits/js/src/mod_fs/class_atomicfile/fs_atomicfile.cpp
@@ -159,10 +159,12 @@ FsResult<string> FsAtomicFile::StartWrite()
     }
 
     char *tmpfile = const_cast<char *>(entity->newFileName.c_str());
-    if (mkstemp(tmpfile) == -1) {
+    int fd = mkstemp(tmpfile);
+    if (fd == -1) {
         HILOGE("Fail to create tmp file err:%{public}d!", errno);
         return FsResult<string>::Error(ENOENT);
     }
+    close(fd);
 
     return FsResult<string>::Success(entity->newFileName);
 }