diff --git a/config.tests/separate_debug_info/CMakeLists.txt b/config.tests/separate_debug_info/CMakeLists.txt
index 757374a34ac..1b98c0dab0c 100644
--- a/config.tests/separate_debug_info/CMakeLists.txt
+++ b/config.tests/separate_debug_info/CMakeLists.txt
@@ -1,3 +1,4 @@
+# special case skip regeneration
 cmake_minimum_required(VERSION 3.14.0)
 project(objcopytest LANGUAGES CXX)
 include(CMakeFindBinUtils)