diff --git a/NPLib/CMakeLists.txt b/NPLib/CMakeLists.txt
index f435533a1bce8d5f4fceea8f24806430bddf1287..35bd754647669bc9202985e5c8ec4498f89dbb66 100644
--- a/NPLib/CMakeLists.txt
+++ b/NPLib/CMakeLists.txt
@@ -49,10 +49,10 @@ elseif(${CMAKE_CXX_FLAGS} MATCHES ".*std=.*0x")
   set(NOCPPFLAGS false) 
 endif()
 
-string(COMPARE EQUAL "${NOCPP11}" "no" nocpp11)
-  if(nocpp11)
-    message(" -> C++11 support disable")
-  endif()
+string(COMPARE EQUAL "${CPP11}" "no" nocpp11)
+if(nocpp11)
+ message(" -> C++11 support disable")
+endif()
 
 if(NOCPPFLAGS)
   CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)