diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1698d47c..f67315dd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,5 @@
+cmake_minimum_required(VERSION 2.6)
+
 project(orogen)
 FIND_PACKAGE(Ruby REQUIRED)