diff --git a/lib/primitives/mtx.js b/lib/primitives/mtx.js
index 470086a6..da8831e2 100644
--- a/lib/primitives/mtx.js
+++ b/lib/primitives/mtx.js
@@ -1798,11 +1798,23 @@ function sortRandom(a, b) {
 }
 
 function sortInputs(a, b) {
-  return util.cmp(a.prevout.toRaw(), b.prevout.toRaw());
+  var ahash = util.revHex(a.prevout.hash);
+  var bhash = util.revHex(b.prevout.hash);
+  var res = util.strcmp(ahash, bhash);
+
+  if (res !== 0)
+    return res;
+
+  return a.prevout.index - b.prevout.index;
 }
 
 function sortOutputs(a, b) {
-  return util.cmp(a.toRaw(), b.toRaw());
+  var res = a.value - b.value;
+
+  if (res !== 0)
+    return res;
+
+  return util.cmp(a.script.toRaw(), b.script.toRaw());
 }
 
 /*