diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8069ee2946fe51d8a86d498321ff24306a0c23a2..c88e8880f516f906bd9550e064d3d80cd6968df1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -88,6 +88,9 @@ CMAKE_MINIMUM_REQUIRED(VERSION 2.6.3 FATAL_ERROR)
 IF(POLICY CMP0025)
   CMAKE_POLICY(SET CMP0025 NEW)
 ENDIF()
+IF(POLICY CMP0056)
+  CMAKE_POLICY(SET CMP0056 NEW)
+ENDIF()
 
 #-----------------------------------------------------------------------------
 # If a namespace is not specified, use "kwsys" and enable testing.