diff --git a/CMakeLists.txt b/CMakeLists.txt
index cafc79d2..9cb5c9a2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,5 @@
+CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
+
 PROJECT(PolyVox)
 
 SET(POLYVOX_VERSION_MAJOR "0")