diff --git a/app/Model/GroupMemberModel.php b/app/Model/GroupMemberModel.php
index a20777896..ff24777e0 100644
--- a/app/Model/GroupMemberModel.php
+++ b/app/Model/GroupMemberModel.php
@@ -60,6 +60,7 @@ class GroupMemberModel extends Base
 
         return $this->db->table(UserModel::TABLE)
             ->notInSubquery('id', $subquery)
+            ->eq('is_active', 1)
             ->findAll();
     }
 
diff --git a/tests/units/Model/GroupMemberTest.php b/tests/units/Model/GroupMemberTest.php
index edc9d98cd..a296e20e5 100644
--- a/tests/units/Model/GroupMemberTest.php
+++ b/tests/units/Model/GroupMemberTest.php
@@ -43,6 +43,8 @@ class GroupMemberTest extends Base
         $this->assertEquals(3, $userModel->create(array('username' => 'user2')));
         $this->assertEquals(4, $userModel->create(array('username' => 'user3')));
         $this->assertEquals(5, $userModel->create(array('username' => 'user4')));
+        $this->assertEquals(6, $userModel->create(array('username' => 'user5')));
+        $this->assertTrue($userModel->disable(6));
 
         $this->assertTrue($groupMemberModel->addUser(1, 1));
         $this->assertTrue($groupMemberModel->addUser(1, 2));