diff --git a/lib/srp.js b/lib/srp.js
index 6060870..4d6fdf6 100644
--- a/lib/srp.js
+++ b/lib/srp.js
@@ -308,8 +308,8 @@ function getM1(params, u_buf, s_buf, A_buf, B_buf, K_buf) {
   assertIsNBuffer(B_buf, params, "B");
   assertIsBuffer(K_buf, params, "K");
 
-  var hN = crypto.createHash(params.hash).update(params.N.toBuffer()).digest();
-  var hG = crypto.createHash(params.hash).update(params.g.toBuffer()).digest();
+  var hN = crypto.createHash(params.hash).update(params.N.toBuffer(true)).digest();
+  var hG = crypto.createHash(params.hash).update(params.g.toBuffer(true)).digest();
 
   for (var i = 0; i < hN.length; i++)
     hN[i] ^= hG[i];
@@ -428,7 +428,6 @@ Server.prototype = {
       throw new Error("incomplete protocol");
     if (!equal(this._private.M1_buf, clientM1_buf))
       throw new Error("client did not use the same password");
-    // return this._private.M2_buf;
   },
   computeK: function computeK() {
     if (this._private.K_buf === undefined)