diff --git a/NPLib/CMakeLists.txt b/NPLib/CMakeLists.txt
index c8adca66df17e389a5bcccddf6f8ba15656317b4..c6cdab9476c2f48d458872b34e39224d9e9f678b 100644
--- a/NPLib/CMakeLists.txt
+++ b/NPLib/CMakeLists.txt
@@ -21,8 +21,10 @@ set(DETLIST ${ETLIST})
 #activate Multithreading (on by default)
 if(NOT NPMULTITHREADING)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DNPMULTITHREADING=0")
+ message("Building application with MultiThreading Support")
  else()
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DNPMULTITHREADING=1")
+ message("Building application with MutilThreading Support")
 endif()