diff --git a/CMakeLists.txt b/CMakeLists.txt
index a46c0557..b0ad2da0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,6 @@
 cmake_minimum_required(VERSION 2.6)
+cmake_policy(VERSION 2.6)
+cmake_policy(SET CMP0037 OLD)
 
 PROJECT(picrin)