diff --git a/benchmark/http_simple.js b/benchmark/http_simple.js
index 8bfc097244..b83c2c9430 100644
--- a/benchmark/http_simple.js
+++ b/benchmark/http_simple.js
@@ -3,7 +3,8 @@ path = require("path");
 libDir = path.join(path.dirname(__filename), "../lib");
 require.paths.unshift(libDir);
 
-process.mixin(require("sys"));
+var sys = (require("sys"));
+for (var i in sys) global[i] = sys[i];
 http = require("http");
 
 fixed = ""
diff --git a/benchmark/process_loop.js b/benchmark/process_loop.js
index 372a89cf34..0ee61b76a2 100644
--- a/benchmark/process_loop.js
+++ b/benchmark/process_loop.js
@@ -1,7 +1,8 @@
 var path = require("path");
 libDir = path.join(path.dirname(__filename), "../lib");
 require.paths.unshift(libDir);
-process.mixin(require("sys"));
+var sys = (require("sys"));
+for (var i in sys) global[i] = sys[i];
 function next (i) {
   if (i <= 0) return;
 
diff --git a/benchmark/run.js b/benchmark/run.js
index 8466b9760f..60b7752c7a 100644
--- a/benchmark/run.js
+++ b/benchmark/run.js
@@ -1,7 +1,8 @@
 var path = require("path");
 libDir = path.join(path.dirname(__filename), "../lib");
 require.paths.unshift(libDir);
-process.mixin(require("sys"));
+var sys = (require("sys"));
+for (var i in sys) global[i] = sys[i];
 var benchmarks = [ "static_http_server.js" 
                  , "timers.js"
                  , "process_loop.js"