diff --git a/database/migrations/2024_12_27_060234_create_studies_table.php b/database/migrations/2024_12_27_060234_create_studies_table.php
index aaf4ddd..d38e488 100644
--- a/database/migrations/2024_12_27_060234_create_studies_table.php
+++ b/database/migrations/2024_12_27_060234_create_studies_table.php
@@ -59,7 +59,7 @@ public function up(): void
 
             $table->timestamps();
 
-            $table->unique(['orthanc_host_id', 'orthanc_uuid']);
+            $table->unique(['dicom_server_id', 'orthanc_uuid']);
         });
     }