diff --git a/src/algs/stogo/tools.h b/src/algs/stogo/tools.h
index 4064c3e0..608ae9f6 100644
--- a/src/algs/stogo/tools.h
+++ b/src/algs/stogo/tools.h
@@ -36,7 +36,7 @@ class Trial{
   friend ostream & operator << (ostream &, RCTrial) ;
 };
 
-#if __cplusplus < 201103L
+#if (!defined(_MSC_VER) && (__cplusplus < 201103L)) || (defined(_MSC_VER) && (_MSVC_LANG < 201103L))
 class TrialGT : public unary_function<Trial, bool>
 #else
 class TrialGT