diff --git a/lib/http.js b/lib/http.js
index ed30793..382a887 100644
--- a/lib/http.js
+++ b/lib/http.js
@@ -97,7 +97,11 @@ var HTTPObject = function(engine) {
     };
     
     this.setProxy = function(proxy) {
-        this.proxy = proxy;
+        for (var k in proxy) {
+            if (k in this.proxy) {
+                this.proxy[k] = proxy[k];
+            }
+        }
         return this;
     };