diff --git a/lib/Github/Api/Organization/Members.php b/lib/Github/Api/Organization/Members.php
index 7358ed27689..b1c0563c590 100644
--- a/lib/Github/Api/Organization/Members.php
+++ b/lib/Github/Api/Organization/Members.php
@@ -46,6 +46,14 @@ public function conceal($organization, $username)
         return $this->delete('orgs/'.rawurlencode($organization).'/public_members/'.rawurlencode($username));
     }
 
+    /*
+     * Add user to organization
+     */
+    public function add($organization, $username)
+    {
+        return $this->put('orgs/'.rawurlencode($organization).'/memberships/'.rawurlencode($username));
+    }
+
     public function remove($organization, $username)
     {
         return $this->delete('orgs/'.rawurlencode($organization).'/members/'.rawurlencode($username));
diff --git a/test/Github/Tests/Api/Organization/MembersTest.php b/test/Github/Tests/Api/Organization/MembersTest.php
index 7111766b82e..8a6a252e0c8 100644
--- a/test/Github/Tests/Api/Organization/MembersTest.php
+++ b/test/Github/Tests/Api/Organization/MembersTest.php
@@ -54,6 +54,22 @@ public function shouldCheckIfOrganizationMember()
         $this->assertEquals($expectedValue, $api->check('KnpLabs', 'l3l0'));
     }
 
+    /**
+     * @test
+     */
+    public function shouldAddOrganizationMember()
+    {
+        $expectedValue = 'response';
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('put')
+            ->with('orgs/KnpLabs/memberships/l3l0')
+            ->will($this->returnValue($expectedValue));
+
+        $this->assertEquals($expectedValue, $api->add('KnpLabs', 'l3l0'));
+    }
+
     /**
      * @test
      */