diff --git a/lib/oauth2.js b/lib/oauth2.js
index 94ed662c..08a2f53b 100644
--- a/lib/oauth2.js
+++ b/lib/oauth2.js
@@ -108,6 +108,13 @@ exports.OAuth2.prototype._request= function(method, url, headers, post_body, acc
     headers: realHeaders
   };
 
+  var proxyServer = process.env['https_proxy'] || process.env['HTTPS_PROXY'];
+  if (proxyServer) {
+    var HttpsProxyAgent = require('https-proxy-agent');
+    var httpsProxyAgent = new HttpsProxyAgent(proxyServer);
+    options.agent = httpsProxyAgent;
+  }
+
   this._executeRequest( http_library, options, post_body, callback );
 }
 
diff --git a/package.json b/package.json
index 1a555333..2b0f40d4 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,9 @@
 , "main" : "index.js"
 , "author" : "Ciaran Jessup <ciaranj@gmail.com>"
 , "repository" : { "type":"git", "url":"http://github.com/ciaranj/node-oauth.git" }
+, "dependencies": {
+    "https-proxy-agent": "^1.0.0"
+  }
 , "devDependencies": {
     "vows": "0.5.x"
   }
diff --git a/tests/oauth2tests.js b/tests/oauth2tests.js
index 134f85bc..57a8ea44 100644
--- a/tests/oauth2tests.js
+++ b/tests/oauth2tests.js
@@ -286,5 +286,19 @@ vows.describe('OAuth2').addBatch({
           oa.get("", {});
         }
       }
+    },
+    'When the user has an https_proxy environment variable set': {
+      topic: new OAuth2("clientId", "clientSecret", undefined, undefined, undefined,
+        undefined),
+      'When calling get': {
+        'we should see the http proxy agent in options passed to http-library' : function(oa) {
+          process.env.https_proxy = "http://proxy-server";
+          oa._executeRequest= function( http_library, options, callback ) {
+            assert.isNotNull(options.agent);
+            };
+          oa.get("", {});
+          delete process.env.https_proxy;
+        }
+      }
     }
 }).export(module);