diff --git a/apps/server/src/core/attachment/attachment.controller.ts b/apps/server/src/core/attachment/attachment.controller.ts
index 3215a74d..73c9699a 100644
--- a/apps/server/src/core/attachment/attachment.controller.ts
+++ b/apps/server/src/core/attachment/attachment.controller.ts
@@ -464,7 +464,8 @@ export class AttachmentController {
       'Cache-Control': `${cacheScope}, max-age=3600`,
     });
 
-    if (fileSize) {
+    const isSvg = attachment.fileExt === '.svg';
+    if (fileSize && !isSvg) {
       res.header('Content-Length', fileSize);
     }
 
diff --git a/apps/server/src/core/attachment/services/attachment.service.ts b/apps/server/src/core/attachment/services/attachment.service.ts
index ea94b983..7a6b228f 100644
--- a/apps/server/src/core/attachment/services/attachment.service.ts
+++ b/apps/server/src/core/attachment/services/attachment.service.ts
@@ -99,6 +99,7 @@ export class AttachmentService {
       if (isUpdate) {
         attachment = await this.attachmentRepo.updateAttachment(
           {
+            fileSize: preparedFile.fileSize,
             updatedAt: new Date(),
           },
           attachmentId,