diff --git a/packages/server/src/utilities/rowProcessor/index.ts b/packages/server/src/utilities/rowProcessor/index.ts
index cf3875b2ea..604f872c81 100644
--- a/packages/server/src/utilities/rowProcessor/index.ts
+++ b/packages/server/src/utilities/rowProcessor/index.ts
@@ -241,7 +241,7 @@ export async function outputProcessing<T extends Row[] | Row>(
           continue
         }
         row[property].forEach((attachment: RowAttachment) => {
-          attachment.url = objectStore.getAppFileUrl(attachment.key)
+          attachment.url ??= objectStore.getAppFileUrl(attachment.key)
         })
       }
     } else if (