diff --git a/include/zephyr/fs/fs.h b/include/zephyr/fs/fs.h
index e26721a115647..fee7b7f56f54b 100644
--- a/include/zephyr/fs/fs.h
+++ b/include/zephyr/fs/fs.h
@@ -297,7 +297,7 @@ static inline void fs_dir_t_init(struct fs_dir_t *zdp)
  * @warning If @p flags are set to 0 the function will open file, if it exists
  *          and is accessible, but you will have no read/write access to it.
  *
- * @param zfp Pointer to a file object
+ * @param zfp Pointer to an @b initialized file object
  * @param file_name The name of a file to open
  * @param flags The mode flags
  *
@@ -506,7 +506,7 @@ int fs_mkdir(const char *path);
  *
  * Opens an existing directory specified by the path.
  *
- * @param zdp Pointer to the directory object
+ * @param zdp Pointer to the @b initialized directory object
  * @param path Path to the directory to open
  *
  * @retval 0 on success;