diff --git a/application/src/Entity/Source/Collection/AbstractCollectionSource.php b/application/src/Entity/Source/Collection/AbstractCollectionSource.php
index 28a6e39..ac377fa 100644
--- a/application/src/Entity/Source/Collection/AbstractCollectionSource.php
+++ b/application/src/Entity/Source/Collection/AbstractCollectionSource.php
@@ -3,12 +3,14 @@
 namespace App\Entity\Source\Collection;
 
 use App\Entity\Source\AbstractSource;
+use App\Entity\Attribut\CollectionAttribut;
 
 /**
  * @todo Implement inhiering classes!
  *
  * @author kevinfrantz
  */
-class AbstractCollectionSource extends AbstractSource implements CollectionSourceInterface
+abstract class AbstractCollectionSource extends AbstractSource implements CollectionSourceInterface
 {
+    use CollectionAttribut;
 }
diff --git a/application/src/Entity/Source/Collection/CollectionSourceInterface.php b/application/src/Entity/Source/Collection/CollectionSourceInterface.php
index 6c05555..00deb24 100644
--- a/application/src/Entity/Source/Collection/CollectionSourceInterface.php
+++ b/application/src/Entity/Source/Collection/CollectionSourceInterface.php
@@ -3,7 +3,8 @@
 namespace App\Entity\Source\Collection;
 
 use App\Entity\Source\SourceInterface;
+use App\Entity\Attribut\CollectionAttributInterface;
 
-interface CollectionSourceInterface extends SourceInterface
+interface CollectionSourceInterface extends SourceInterface, CollectionAttributInterface
 {
 }
diff --git a/application/tests/Unit/Entity/Source/Collection/AbstractCollectionSourceTest.php b/application/tests/Unit/Entity/Source/Collection/AbstractCollectionSourceTest.php
new file mode 100644
index 0000000..7876b98
--- /dev/null
+++ b/application/tests/Unit/Entity/Source/Collection/AbstractCollectionSourceTest.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace Tests\Unit\Entity\Source\Collection;
+
+use PHPUnit\Framework\TestCase;
+use App\Entity\Source\Collection\CollectionSourceInterface;
+use App\Entity\Source\Collection\AbstractCollectionSource;
+
+class AbstractCollectionSourceTest extends TestCase
+{
+    /**
+     * @var CollectionSourceInterface
+     */
+    public $collectionSource;
+
+    public function setUp(): void
+    {
+        $this->collectionSource = new class() extends AbstractCollectionSource {
+        };
+    }
+
+    public function testConstruct(): void
+    {
+        $this->expectException(\TypeError::class);
+        $this->collectionSource->getCollection();
+    }
+}