diff --git a/string/mystring.h b/string/mystring.h
index e312abd..276207f 100644
--- a/string/mystring.h
+++ b/string/mystring.h
@@ -90,7 +90,6 @@ char *string_cstr(string_s *string);
  * @return Newly allocated null-terminated buffer, or NULL on failure.
  *
  * @note The caller is responsible for freeing the returned buffer with free().
- * See string_lock().
  */
 char *string_copy(string_s *string);