diff --git a/src/Appwrite/Utopia/Response.php b/src/Appwrite/Utopia/Response.php
index a71e9a1e8d..8143c7b153 100644
--- a/src/Appwrite/Utopia/Response.php
+++ b/src/Appwrite/Utopia/Response.php
@@ -726,6 +726,7 @@ class Response extends SwooleResponse
         }
 
         $this
+            ->setContentType($multipart->exportHeader())
             ->send($multipart->exportBody());
     }
 
diff --git a/tests/e2e/Services/Functions/FunctionsCustomServerTest.php b/tests/e2e/Services/Functions/FunctionsCustomServerTest.php
index aedcdada21..aface6e822 100644
--- a/tests/e2e/Services/Functions/FunctionsCustomServerTest.php
+++ b/tests/e2e/Services/Functions/FunctionsCustomServerTest.php
@@ -1491,6 +1491,8 @@ class FunctionsCustomServerTest extends Scope
 
         $this->assertEquals(201, $execution['headers']['status-code']);
         $this->assertStringContainsString('multipart/form-data', $execution['headers']['content-type']);
+        $contentType = explode(';', $execution['headers']['content-type']);
+        $this->assertStringContainsString('boundary=----', $contentType[1]);
         $bytes = unpack('C*byte', $execution['body']['responseBody']);
         $this->assertCount(3, $bytes);
         $this->assertEquals(0, $bytes['byte1']);