diff --git a/source/Spiral/ORM/Entities/Relations/MultipleRelation.php b/source/Spiral/ORM/Entities/Relations/MultipleRelation.php
index 51aba5c..e97f636 100644
--- a/source/Spiral/ORM/Entities/Relations/MultipleRelation.php
+++ b/source/Spiral/ORM/Entities/Relations/MultipleRelation.php
@@ -178,7 +178,7 @@ protected function initInstances(): self
             $iterator = new RecordIterator($this->data, $this->class, $this->orm);
 
             foreach ($iterator as $item) {
-                if (in_array($item, $this->instances)) {
+                if (in_array($item, $this->instances, true)) {
                     //Skip duplicates
                     continue;
                 }
@@ -199,4 +199,4 @@ protected function initInstances(): self
      * @return array
      */
     abstract protected function loadRelated(): array;
-}
\ No newline at end of file
+}