diff --git a/CMakeLists.txt b/CMakeLists.txt
index e85730863b..d287de59aa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,7 +66,7 @@ option(USE_DIST_PACKAGES_FOR_PYTHON
 #============================================================================
 
 # Setting this policy enables using the protobuf_MODULE_COMPATIBLE
-# set command in CMake versions older than 13.13
+# set command when cmake_minimum_required is less than 3.13
 set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
 # This option is needed to use the PROTOBUF_GENERATE_CPP
 # in case protobuf is found with the CMake config files