diff --git a/benchmark.js b/benchmark.js
index f142b3c6..c5574f4c 100644
--- a/benchmark.js
+++ b/benchmark.js
@@ -1536,7 +1536,7 @@
         var errorStr;
         if (!_.isObject(error)) {
           errorStr = String(error);
-        } else if (!_.isError(Error)) {
+        } else if (!_.isError(error)) {
           errorStr = join(error);
         } else {
           // Error#name and Error#message properties are non-enumerable.