diff --git a/CHANGELOG.md b/CHANGELOG.md
index 517f52bb..c3ae6873 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@ Version 267:
 * Add package for Travis config
 * Fix signed/unsigned mismatch in file_stdio::seek
 * basic_stream dtor cannot throw
+* cmake: check policy first
 
 --------------------------------------------------------------------------------
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7f909763..ac466e89 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,10 @@
 #
 
 cmake_minimum_required (VERSION 3.5.1)
-cmake_policy (SET CMP0074 NEW)
+
+if (POLICY CMP0074)
+    cmake_policy (SET CMP0074 NEW)
+endif()
 
 #-------------------------------------------------------------------------------