From 19c02bdd0b8a808bb37817c81cbbb37b1703cd7a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mael=20Rouxel-Labb=C3=A9?=
 <mael.rouxel.labbe@geometryfactory.com>
Date: Sat, 19 Oct 2019 18:06:05 +0200
Subject: [PATCH] Fix missing include

---
 .../Policies/Edge_collapse/Bounded_normal_change_placement.h   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Surface_mesh_simplification/include/CGAL/Surface_mesh_simplification/Policies/Edge_collapse/Bounded_normal_change_placement.h b/Surface_mesh_simplification/include/CGAL/Surface_mesh_simplification/Policies/Edge_collapse/Bounded_normal_change_placement.h
index d1a94e1e71c..13fa13532b9 100644
--- a/Surface_mesh_simplification/include/CGAL/Surface_mesh_simplification/Policies/Edge_collapse/Bounded_normal_change_placement.h
+++ b/Surface_mesh_simplification/include/CGAL/Surface_mesh_simplification/Policies/Edge_collapse/Bounded_normal_change_placement.h
@@ -21,6 +21,9 @@
 #define CGAL_SURFACE_MESH_SIMPLIFICATION_POLICIES_EDGE_COLLAPSE_BOUNDED_NORMAL_CHANGE_PLACEMENT_H
 
 #include <CGAL/license/Surface_mesh_simplification.h>
+
+#include <CGAL/property_map.h>
+
 #include <boost/optional.hpp>
 
 namespace CGAL {