diff --git a/benchmark/crypto/get-ciphers.js b/benchmark/crypto/get-ciphers.js
index f6b1767cb4fbcc..3f5ad17ad38716 100644
--- a/benchmark/crypto/get-ciphers.js
+++ b/benchmark/crypto/get-ciphers.js
@@ -18,6 +18,6 @@ function main(conf) {
       method();
   }
   bench.start();
-  for (; i < n; i++) method();
+  for (i = 0; i < n; i++) method();
   bench.end(n);
 }
diff --git a/benchmark/misc/punycode.js b/benchmark/misc/punycode.js
index b359fbbff4bbc6..74ddadbb9daa6c 100644
--- a/benchmark/misc/punycode.js
+++ b/benchmark/misc/punycode.js
@@ -46,7 +46,7 @@ function runPunycode(n, val) {
   for (; i < n; i++)
     usingPunycode(val);
   bench.start();
-  for (; i < n; i++)
+  for (i = 0; i < n; i++)
     usingPunycode(val);
   bench.end(n);
 }