diff --git a/STL_Extension/include/CGAL/Iterator_range.h b/STL_Extension/include/CGAL/Iterator_range.h
index 20a2bc8458b..708c5c142e3 100644
--- a/STL_Extension/include/CGAL/Iterator_range.h
+++ b/STL_Extension/include/CGAL/Iterator_range.h
@@ -77,6 +77,7 @@ namespace CGAL {
   {
     return begin()==end();
   }
+#ifndef CGAL_CFG_NO_CPP0X_TUPLE
 
   operator std::tuple<I&, I&>()
   {
@@ -87,6 +88,8 @@ namespace CGAL {
   {
     return std::tuple<const I&, const I&>{this->first, this->second};
   }
+#endif
+
 };
 
   template <typename T>