diff --git a/lib/crypto/point.js b/lib/crypto/point.js
index b4155c3e3..d2aea4908 100644
--- a/lib/crypto/point.js
+++ b/lib/crypto/point.js
@@ -63,7 +63,8 @@ Point.getN = function getN() {
   return new BN(ec.curve.n.toArray());
 };
 
-Point.prototype._getX = Point.prototype.getX;
+if (!Point.prototype._getX)
+  Point.prototype._getX = Point.prototype.getX;
 
 /**
  *
@@ -75,7 +76,8 @@ Point.prototype.getX = function getX() {
   return new BN(this._getX().toArray());
 };
 
-Point.prototype._getY = Point.prototype.getY;
+if (!Point.prototype._getY)
+  Point.prototype._getY = Point.prototype.getY;
 
 /**
  *