diff --git a/Triangulation_3/include/CGAL/Triangulation_3.h b/Triangulation_3/include/CGAL/Triangulation_3.h
index 9a7f67521f6..84a845970f0 100644
--- a/Triangulation_3/include/CGAL/Triangulation_3.h
+++ b/Triangulation_3/include/CGAL/Triangulation_3.h
@@ -5498,8 +5498,8 @@ operator==(const Triangulation_3<GT, Tds1> &t1,
         using namespace boost;
         std::vector<Point> V1 (t1.points_begin(), t1.points_end());
         std::vector<Point> V2 (t2.points_begin(), t2.points_end());
-        std::sort(V1.begin(), V1.end(), bind(cmp1, _1, _2) == NEGATIVE);
-        std::sort(V2.begin(), V2.end(), bind(cmp2, _1, _2) == NEGATIVE);
+        std::sort(V1.begin(), V1.end(), boost::bind(cmp1, _1, _2) == NEGATIVE);
+        std::sort(V2.begin(), V2.end(), boost::bind(cmp2, _1, _2) == NEGATIVE);
         return V1 == V2;
     }