diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3734daa..640a0e2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,7 @@
+# This CMakeLists.txt checks the system for the Google Test framework.
+# In case GTest is not found, the manual test cases are used in manualtest.cpp
+# instead of the cool unit tests in test.cpp
+
 cmake_minimum_required(VERSION 3.6)
 project(cpp11NHF1_refcountedString)