diff --git a/src/ant/ant/antObject.cc b/src/ant/ant/antObject.cc
index 408f9cc57..6b23fb375 100644
--- a/src/ant/ant/antObject.cc
+++ b/src/ant/ant/antObject.cc
@@ -403,6 +403,25 @@ Object::box () const
   for (auto d = m_points.begin (); d != m_points.end (); ++d) {
     bx += *d;
   }
+
+  if (m_outline == OL_angle) {
+
+    double radius, start_angle, end_angle;
+    db::DPoint center;
+    if (compute_angle_parameters (radius, center, start_angle, end_angle)) {
+      bx += db::DBox (center - db::DVector (radius, radius), center + db::DVector (radius, radius));
+    }
+
+  } else if (m_outline == OL_radius) {
+
+    double radius, start_angle, end_angle;
+    db::DPoint center;
+    if (compute_interpolating_circle (radius, center, start_angle, end_angle)) {
+      bx += db::DBox (center - db::DVector (radius, radius), center + db::DVector (radius, radius));
+    }
+
+  }
+
   return bx;
 }
 
diff --git a/testdata/ruby/antTest.rb b/testdata/ruby/antTest.rb
index aededf91d..ccd56fe38 100644
--- a/testdata/ruby/antTest.rb
+++ b/testdata/ruby/antTest.rb
@@ -708,6 +708,20 @@ def test_6
 
   end
 
+  # bbox
+  def test_7
+
+    a = annot_obj2( [ RBA::DPoint::new(0, 0), RBA::DPoint::new(0, 1), RBA::DPoint::new(1, 1) ], "", "", "", RBA::Annotation::StyleLine, RBA::Annotation::OutlineDiag, false, RBA::Annotation::AngleAny)
+    assert_equal(a.box.to_s, "(0,0;1,1)")
+
+    a.outline = RBA::Annotation::OutlineRadius
+    assert_equal(a.box.to_s, "(-0.207106781187,-0.207106781187;1.20710678119,1.20710678119)")
+
+    a.outline = RBA::Annotation::OutlineAngle
+    assert_equal(a.box.to_s, "(-1,0;1,2)")
+
+  end
+
 end
 
 load("test_epilogue.rb")