diff --git a/classes/core_userkey_manager.php b/classes/core_userkey_manager.php
index 62b0714..0d0bd15 100644
--- a/classes/core_userkey_manager.php
+++ b/classes/core_userkey_manager.php
@@ -80,12 +80,6 @@ class core_userkey_manager implements userkey_manager_interface {
      * @throws \Exception If there is no user with provided userid.
      */
     public function __construct($userid, \stdClass $config) {
-        global $DB;
-
-        if (!$DB->record_exists('user', array('id' => $userid))) {
-            throw new \Exception('Invalid user id');
-        }
-
         $this->userid = $userid;
         $this->config = $config;
 
diff --git a/tests/core_userkey_manager_test.php b/tests/core_userkey_manager_test.php
index 6cc2c18..00de1af 100644
--- a/tests/core_userkey_manager_test.php
+++ b/tests/core_userkey_manager_test.php
@@ -65,13 +65,14 @@ class core_userkey_manager_testcase extends advanced_testcase {
     }
 
     /**
-     * Test that exception gets thrown if user is not exist.
-     *
-     * @expectedException \Exception
+     * Test that we can use user ID of not existing user.
      */
-    public function test_throws_exception_if_user_is_not_exists() {
+    public function test_that_manager_does_not_care_if_user_is_not_exists() {
         $brokenuserid = 500;
         $manager = new core_userkey_manager($brokenuserid, $this->config);
+
+        $expected = 'auth_userkey\userkey_manager_interface';
+        $this->assertInstanceOf($expected, $manager);
     }
 
     /**