diff --git a/CMakeLists.txt b/CMakeLists.txt
index 332655af..8c8d0398 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,7 @@
 cmake_minimum_required(VERSION 3.8)
-cmake_policy(SET CMP0015 NEW)
-cmake_policy(SET CMP0135 NEW)
+if(POLICY CMP0135)
+    cmake_policy(SET CMP0135 NEW)
+endif()
 project(libloot)
 include(ExternalProject)