diff --git a/src/Validator/ObjectExists.php b/src/Validator/ObjectExists.php
index e8475338..61044cdd 100644
--- a/src/Validator/ObjectExists.php
+++ b/src/Validator/ObjectExists.php
@@ -118,14 +118,14 @@ private function validateFields(): array
     }
 
     /**
-     * @param string|object|mixed[] $value a field value or an array of field values if more fields have been configured to be
+     * @param string|int|object|mixed[] $value a field value or an array of field values if more fields have been configured to be
      *                      matched
      *
      * @return mixed[]
      *
      * @throws Exception\RuntimeException
      */
-    protected function cleanSearchValue(string|object|array $value): array
+    protected function cleanSearchValue(string|int|object|array $value): array
     {
         $value = is_object($value) ? [$value] : (array) $value;
 
diff --git a/tests/Validator/ObjectExistsTest.php b/tests/Validator/ObjectExistsTest.php
index 8cbe1a70..c19ca9c1 100644
--- a/tests/Validator/ObjectExistsTest.php
+++ b/tests/Validator/ObjectExistsTest.php
@@ -36,6 +36,22 @@ public function testCanValidateWithSingleField(): void
         $this->assertTrue($validator->isValid(['matchKey' => 'matchValue']));
     }
 
+    public function testCanValidateWithIntegerId(): void
+    {
+        $repository = $this->createMock(ObjectRepository::class);
+
+        $repository
+            ->expects($this->exactly(2))
+            ->method('findOneBy')
+            ->with(['matchKey' => 123])
+            ->will($this->returnValue(new stdClass()));
+
+        $validator = new ObjectExists(['object_repository' => $repository, 'fields' => 'matchKey']);
+
+        $this->assertTrue($validator->isValid(123));
+        $this->assertTrue($validator->isValid(['matchKey' => 123]));
+    }
+
     public function testCanValidateWithMultipleFields(): void
     {
         $repository = $this->createMock(ObjectRepository::class);