diff --git a/lib/mining/miner.js b/lib/mining/miner.js
index 980a5aa4..f9add2a8 100644
--- a/lib/mining/miner.js
+++ b/lib/mining/miner.js
@@ -634,7 +634,16 @@ function cmpPriority(a, b) {
 }
 
 function cmpRate(a, b) {
-  return b.descRate - a.descRate;
+  var x = a.rate;
+  var y = b.rate;
+
+  if (a.descRate > a.rate)
+    x = a.descRate;
+
+  if (b.descRate > b.rate)
+    y = b.descRate;
+
+  return y - x;
 }
 
 /*