diff --git a/lib/crypto/ec-elliptic.js b/lib/crypto/ec-elliptic.js
index 76e941a6..757bedb2 100644
--- a/lib/crypto/ec-elliptic.js
+++ b/lib/crypto/ec-elliptic.js
@@ -225,9 +225,7 @@ ec.sign = function sign(msg, key) {
   sig = secp256k1.sign(msg, key, { canonical: true });
 
   // Convert to DER array
-  sig = new Buffer(sig.toDER());
-
-  return sig;
+  return new Buffer(sig.toDER());
 };
 
 /**