diff --git a/components/libc/compilers/common/include/sys/unistd.h b/components/libc/compilers/common/include/sys/unistd.h
index 0eaf52423c..b9c64f3bb6 100644
--- a/components/libc/compilers/common/include/sys/unistd.h
+++ b/components/libc/compilers/common/include/sys/unistd.h
@@ -23,6 +23,11 @@ extern "C" {
 #define STDOUT_FILENO   1       /* standard output file descriptor */
 #define STDERR_FILENO   2       /* standard error file descriptor */
 
+#define F_OK 0
+#define X_OK 1
+#define W_OK 2
+#define R_OK 4
+
 unsigned alarm(unsigned __secs);
 ssize_t read(int fd, void *buf, size_t len);
 ssize_t write(int fd, const void *buf, size_t len);
diff --git a/components/utilities/ulog/backend/file_be.c b/components/utilities/ulog/backend/file_be.c
index 62f3f7ad83..a57f2c82a7 100644
--- a/components/utilities/ulog/backend/file_be.c
+++ b/components/utilities/ulog/backend/file_be.c
@@ -86,7 +86,7 @@ static void ulog_file_backend_flush_with_buf(struct ulog_backend *backend)
     if (be->cur_log_file_fd < 0)
     {
         /* check log file directory  */
-        if (access(be->cur_log_dir_path, 0) < 0)
+        if (access(be->cur_log_dir_path, F_OK) < 0)
         {
             mkdir(be->cur_log_dir_path, 0);
         }