diff --git a/projects/Math/9/org/apache/commons/math3/geometry/euclidean/threed/Line.java b/projects/Math/9/org/apache/commons/math3/geometry/euclidean/threed/Line.java
index 674c4aa..7c9a28f 100644
--- a/projects/Math/9/org/apache/commons/math3/geometry/euclidean/threed/Line.java
+++ b/projects/Math/9/org/apache/commons/math3/geometry/euclidean/threed/Line.java
@@ -84,7 +84,8 @@ public void reset(final Vector3D p1, final Vector3D p2) throws MathIllegalArgume
      * @return a new instance, with reversed direction
      */
     public Line revert() {
-        final Line reverted = new Line(zero, zero.subtract(direction));
+        final Line reverted = new Line(this);
+        reverted.direction = reverted.direction.negate();
         return reverted;
     }