diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2768cf53fd..4cbd89a0f0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,9 @@
 cmake_minimum_required(VERSION 3.0)
 
+if(POLICY CMP0091)
+cmake_policy(SET CMP0091 NEW)
+endif()
+
 # Defer enabling C and CXX languages.
 project(AWSLC NONE)