diff --git a/lib/primitives/tx.js b/lib/primitives/tx.js
index 082cccd9..0989b6c4 100644
--- a/lib/primitives/tx.js
+++ b/lib/primitives/tx.js
@@ -1935,10 +1935,15 @@ TX.prototype.getRoundFee = function getRoundFee(size, rate) {
  */
 
 TX.prototype.getRate = function getRate(view, size) {
+  var fee = this.getFee(view);
+
+  if (fee < 0)
+    return 0;
+
   if (size == null)
     size = this.getVirtualSize();
 
-  return policy.getRate(size, this.getFee(view));
+  return policy.getRate(size, fee);
 };
 
 /**