diff --git a/src/SaveRelationsBehavior.php b/src/SaveRelationsBehavior.php
index 32405d2..0b8a476 100644
--- a/src/SaveRelationsBehavior.php
+++ b/src/SaveRelationsBehavior.php
@@ -279,11 +279,9 @@ class SaveRelationsBehavior extends Behavior
                     if (!empty($model->{$relationName})) {
                         if ($relation->multiple === false) {
                             $relationModel = $model->{$relationName};
-                            if (!($model::isPrimaryKey(array_values($relation->link))
-                                && $relationModel::isPrimaryKey(array_keys($relation->link))
-                                && $model->getIsNewRecord()
-                                && $relationModel->getIsNewRecord()
-                            )) {
+                            $p1 = $model->isPrimaryKey(array_keys($relation->link));
+                            $p2 = $relationModel::isPrimaryKey(array_values($relation->link));
+                            if ($relationModel->getIsNewRecord() && $p1 && !$p2) {
                                 // Save Has one relation new record
                                 $pettyRelationName = Inflector::camel2words($relationName, true);
                                 $this->saveModelRecord($model->{$relationName}, $event, $pettyRelationName, $relationName);
diff --git a/tests/SaveRelationsBehaviorTest.php b/tests/SaveRelationsBehaviorTest.php
index 079137d..6c45793 100644
--- a/tests/SaveRelationsBehaviorTest.php
+++ b/tests/SaveRelationsBehaviorTest.php
@@ -60,8 +60,9 @@ class SaveRelationsBehaviorTest extends \PHPUnit_Framework_TestCase
 
         // User
         $db->createCommand()->createTable('user', [
-            'id'       => $migration->primaryKey(),
-            'username' => $migration->string()->notNull()->unique()
+            'id'         => $migration->primaryKey(),
+            'company_id' => $migration->integer()->notNull(),
+            'username'   => $migration->string()->notNull()->unique()
         ])->execute();
 
         // User profile
@@ -133,11 +134,11 @@ class SaveRelationsBehaviorTest extends \PHPUnit_Framework_TestCase
             [3, 'Google'],
         ])->execute();
 
-        $db->createCommand()->batchInsert('user', ['id', 'username'], [
-            [1, 'Steve Jobs'],
-            [2, 'Bill Gates'],
-            [3, 'Tim Cook'],
-            [4, 'Jonathan Ive']
+        $db->createCommand()->batchInsert('user', ['id', 'username', 'company_id'], [
+            [1, 'Steve Jobs', 1],
+            [2, 'Bill Gates', 2],
+            [3, 'Tim Cook', 1],
+            [4, 'Jonathan Ive', 1]
         ])->execute();
 
         $db->createCommand()->batchInsert('project', ['id', 'name', 'company_id'], [
@@ -312,6 +313,7 @@ class SaveRelationsBehaviorTest extends \PHPUnit_Framework_TestCase
         $this->assertCount(1, $project->users, 'Project should have 1 user before save');
         $user = new User();
         $user->username = "Steve Balmer";
+        $user->company_id = 2;
         $project->users = array_merge($project->users, [$user]); // Add a fresh new user
         $this->assertCount(2, $project->users, 'Project should have 2 users after assignment');
         $this->assertTrue($project->save(), 'Project could not be saved');
@@ -322,7 +324,7 @@ class SaveRelationsBehaviorTest extends \PHPUnit_Framework_TestCase
     {
         $project = Project::findOne(2);
         $this->assertCount(1, $project->users, 'Project should have 1 user before save');
-        $user = ['username' => "Steve Balmer"];
+        $user = ['username' => "Steve Balmer", 'company_id' => 2];
         $project->users = array_merge($project->users, [$user]); // Add a fresh new user
         $this->assertCount(2, $project->users, 'Project should have 2 users after assignment');
         $this->assertTrue($project->save(), 'Project could not be saved');
@@ -643,6 +645,9 @@ class SaveRelationsBehaviorTest extends \PHPUnit_Framework_TestCase
     {
         $user = new User();
         $user->username = 'Dummy More';
+        $user->company = [
+            'name' => 'ACME'
+        ];
         $user->userProfile = [
             'bio' => "Some great bio"
         ];
@@ -651,4 +656,16 @@ class SaveRelationsBehaviorTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($user->id, $user->userProfile->user_id);
     }
 
+    public function testSaveCompanyWithUser()
+    {
+        $project = new Project();
+        $project->name = "Cartoon";
+        $company = new Company();
+        $company->name = 'ACME';
+        $user = new User();
+        $user->username = "Bugs Bunny";
+        $company->users = $user;
+        $project->company = $company;
+        $this->assertTrue($project->save(), 'Project could not be saved');
+    }
 }
diff --git a/tests/models/Company.php b/tests/models/Company.php
index 4aece91..420d38a 100644
--- a/tests/models/Company.php
+++ b/tests/models/Company.php
@@ -2,6 +2,8 @@
 
 namespace tests\models;
 
+use lhs\Yii2SaveRelationsBehavior\SaveRelationsBehavior;
+
 class Company extends \yii\db\ActiveRecord
 {
 
@@ -16,6 +18,19 @@ class Company extends \yii\db\ActiveRecord
     /**
      * @inheritdoc
      */
+    public function behaviors()
+    {
+        return [
+            'saveRelations' => [
+                'class'     => SaveRelationsBehavior::className(),
+                'relations' => ['users']
+            ],
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
     public function rules()
     {
         return [
@@ -24,4 +39,12 @@ class Company extends \yii\db\ActiveRecord
         ];
     }
 
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getUsers()
+    {
+        return $this->hasMany(User::className(), ['company_id' => 'id']);
+    }
+
 }
diff --git a/tests/models/User.php b/tests/models/User.php
index 0f7c176..1759942 100644
--- a/tests/models/User.php
+++ b/tests/models/User.php
@@ -22,7 +22,7 @@ class User extends \yii\db\ActiveRecord
         return [
             'saveRelations' => [
                 'class'     => SaveRelationsBehavior::className(),
-                'relations' => ['userProfile']
+                'relations' => ['userProfile', 'company']
             ],
         ];
     }
@@ -33,8 +33,10 @@ class User extends \yii\db\ActiveRecord
     public function rules()
     {
         return [
+            ['company_id', 'integer'],
             ['username', 'required'],
             ['username', 'unique', 'targetClass' => '\tests\models\User'],
+            [['company_id'], 'exist', 'skipOnError' => true, 'targetClass' => Company::className(), 'targetAttribute' => ['company_id' => 'id']],
         ];
     }
 
@@ -46,4 +48,12 @@ class User extends \yii\db\ActiveRecord
         return $this->hasOne(UserProfile::className(), ['user_id' => 'id']);
     }
 
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getCompany()
+    {
+        return $this->hasOne(Company::className(), ['id' => 'company_id']);
+    }
+
 }