diff --git a/Boolean_set_operations_2/include/CGAL/Boolean_set_operations_2/Gps_agg_meta_traits.h b/Boolean_set_operations_2/include/CGAL/Boolean_set_operations_2/Gps_agg_meta_traits.h
index 8c672f1888e..a2a2ff547ef 100644
--- a/Boolean_set_operations_2/include/CGAL/Boolean_set_operations_2/Gps_agg_meta_traits.h
+++ b/Boolean_set_operations_2/include/CGAL/Boolean_set_operations_2/Gps_agg_meta_traits.h
@@ -163,8 +163,8 @@ class Gps_agg_meta_traits :
                  const Base_Compare_xy_2& base_cmp_xy,
                  const Base_Construct_min_vertex_2& ctr_min_v) : 
       m_base(base),
-      m_base_cmp_endpoints(m_base_cmp_endpoints),
-      m_base_cmp_xy(m_base_cmp_xy)
+      m_base_cmp_endpoints(base_cmp_endpoints),
+      m_base_cmp_xy(base_cmp_xy)
     {}
 
     template<class OutputIterator>
diff --git a/Boolean_set_operations_2/include/CGAL/Boolean_set_operations_2/Gps_simplifier_traits.h b/Boolean_set_operations_2/include/CGAL/Boolean_set_operations_2/Gps_simplifier_traits.h
index 0f058a0ccbe..f10f50a1ff2 100644
--- a/Boolean_set_operations_2/include/CGAL/Boolean_set_operations_2/Gps_simplifier_traits.h
+++ b/Boolean_set_operations_2/include/CGAL/Boolean_set_operations_2/Gps_simplifier_traits.h
@@ -188,8 +188,8 @@ public:
                  const Base_Construct_min_vertex_2& ctr_min_v,
                  const Self*  tr) : 
       m_base(base),
-      m_base_cmp_endpoints(m_base_cmp_endpoints),
-      m_base_cmp_xy(m_base_cmp_xy),
+      m_base_cmp_endpoints(base_cmp_endpoints),
+      m_base_cmp_xy(base_cmp_xy),
       m_self_tr(tr)
     {}