diff --git a/src/js/sjcl/core/ecc.js b/src/js/sjcl/core/ecc.js
index b36e7221..9a5a9b88 100644
--- a/src/js/sjcl/core/ecc.js
+++ b/src/js/sjcl/core/ecc.js
@@ -11,8 +11,16 @@ sjcl.ecc.point = function(curve,x,y) {
   if (x === undefined) {
     this.isIdentity = true;
   } else {
+    if (x instanceof sjcl.bn) {
+      x = new curve.field(x);
+    }
+    if (y instanceof sjcl.bn) {
+      y = new curve.field(y);
+    }
+
     this.x = x;
     this.y = y;
+
     this.isIdentity = false;
   }
   this.curve = curve;