diff --git a/lib/Unirest/Unirest.php b/lib/Unirest/Unirest.php
index 86beea3..f190b25 100644
--- a/lib/Unirest/Unirest.php
+++ b/lib/Unirest/Unirest.php
@@ -234,7 +234,7 @@ class Unirest
         $pairs = explode("&", $querystring);
         $vars  = array();
         foreach ($pairs as $pair) {
-            $nv          = explode("=", $pair);
+            $nv          = explode("=", $pair, 2);
             $name        = $nv[0];
             $value       = $nv[1];
             $vars[$name] = $value;
diff --git a/test/Unirest/UnirestTest.php b/test/Unirest/UnirestTest.php
index 8dbd2f7..fc72659 100644
--- a/test/Unirest/UnirestTest.php
+++ b/test/Unirest/UnirestTest.php
@@ -87,6 +87,34 @@ class UnirestTest extends UnitTestCase
         $this->assertEqual("thefosk", $form->nick);
     }
 
+    public function testPostWithEqualSign()
+    {
+        $response = Unirest::post("http://httpbin.org/post", array(
+            "Accept" => "application/json"
+        ), array(
+            "name" => "Mark=Hello"
+        ));
+        
+        $this->assertEqual(200, $response->code);
+        
+        $form = $response->body->form;
+        $this->assertEqual("Mark=Hello", $form->name);
+    }
+
+    public function testGetWithEqualSign()
+    {
+        $response = Unirest::get("http://httpbin.org/get", array(
+            "Accept" => "application/json"
+        ), array(
+            "name" => "Mark=Hello"
+        ));
+        
+        $this->assertEqual(200, $response->code);
+        
+        $args = $response->body->args;
+        $this->assertEqual("Mark=Hello", $args->name);
+    }
+
     public function testPostArray()
     {
         $response = Unirest::post("http://httpbin.org/post", array(