diff --git a/server/gameserver/mapinstance.cc b/server/gameserver/mapinstance.cc
index 42fd4e35..cf326e45 100644
--- a/server/gameserver/mapinstance.cc
+++ b/server/gameserver/mapinstance.cc
@@ -801,10 +801,16 @@ void MapInstance::LoadHouse()
                 HouseInfo p;
                 p.node = node;
                 {
-                    for (auto& point : new_points) {
-                        p.verts.push_back(point.x);
-                        p.verts.push_back(point.y);
-                        p.verts.push_back(point.z);
+                    for (size_t i = 0; i < new_points.size(); ++i) {
+                        const auto& point = new_points[i];
+                        if (i >= 4) {
+                            p.verts.push_back(point.x);
+                            p.verts.push_back(point.y);
+                            p.verts.push_back(point.z);
+                        }
+                    }
+                    if (p.verts.size() != 3 * 4) {
+                        abort();
                     }
                 }
                 houses_.push_back(p);