diff --git a/src/lib/Repository/ContentService/RelationListFacade.php b/src/lib/Repository/ContentService/RelationListFacade.php
index 61fead67be..445d3be824 100644
--- a/src/lib/Repository/ContentService/RelationListFacade.php
+++ b/src/lib/Repository/ContentService/RelationListFacade.php
@@ -36,7 +36,8 @@ public function getRelations(VersionInfo $versionInfo): iterable
         foreach ($relationListIterator as $relationListItem) {
             if ($relationListItem->hasRelation()) {
                 /** @var \Ibexa\Contracts\Core\Repository\Values\Content\Relation $relation */
-                yield $relationListItem->getRelation();
+                $relation = $relationListItem->getRelation();
+                yield $relation;
             }
         }
     }
diff --git a/tests/lib/Repository/ContentService/RelationListFacadeTest.php b/tests/lib/Repository/ContentService/RelationListFacadeTest.php
index af8c7400e2..edf8ddd5d5 100644
--- a/tests/lib/Repository/ContentService/RelationListFacadeTest.php
+++ b/tests/lib/Repository/ContentService/RelationListFacadeTest.php
@@ -14,15 +14,16 @@
 use Ibexa\Contracts\Core\Repository\Values\Content\RelationList\RelationListItemInterface;
 use Ibexa\Contracts\Core\Repository\Values\Content\VersionInfo;
 use Ibexa\Core\Repository\ContentService\RelationListFacade;
+use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
 
 final class RelationListFacadeTest extends TestCase
 {
-    private ContentService $contentService;
+    private ContentService&MockObject $contentService;
 
     private RelationListFacade $relationListFacade;
 
-    private VersionInfo $versionInfo;
+    private VersionInfo&MockObject $versionInfo;
 
     protected function setUp(): void
     {