diff --git a/src/shape.c b/src/shape.c
index 17b47e3..35aa34c 100644
--- a/src/shape.c
+++ b/src/shape.c
@@ -69,12 +69,17 @@ Shape* shape_new(const Vector* points, size_t points_len) {
     self->points = list_from_type(Vector);
     list_reserve(&self->points, points_len);
 
-    memcpy(list_iterator_begin_as(Vector, &self->points), points, points_len * sizeof(Vector));
-    self->points.len = points_len;
+    if(points != NULL) {
+        memcpy(list_iterator_begin_as(Vector, &self->points), points, points_len * sizeof(Vector));
+        self->points.len = points_len;
 
-    // derive metadata
-    self->mean = _shape_calculate_mean(self);
-    self->is_convex = _shape_calculate_is_convex(self);
+        // derive metadata
+        self->mean = _shape_calculate_mean(self);
+        self->is_convex = _shape_calculate_is_convex(self);
+    } else {
+        self->is_convex = 1;
+        self->mean = ZeroVector;
+    }
 
     return self;
 }