diff --git a/src/main/java/im/rosetta/api/CdnResource.java b/src/main/java/im/rosetta/api/CdnResource.java
index 58ceba8..37a28cb 100644
--- a/src/main/java/im/rosetta/api/CdnResource.java
+++ b/src/main/java/im/rosetta/api/CdnResource.java
@@ -1,7 +1,6 @@
 package im.rosetta.api;
 
 import im.rosetta.storage.FileStore;
-import jakarta.ws.rs.Consumes;
 import jakarta.ws.rs.GET;
 import jakarta.ws.rs.POST;
 import jakarta.ws.rs.Path;
@@ -65,6 +64,7 @@ public class CdnResource {
             StreamingOutput stream = output -> Files.copy(file.get(), output);
             return Response.ok(stream)
                     .header("Content-Disposition", "attachment; filename=\"" + tag + "\"")
+                    .header("Content-Length", Files.size(file.get()))
                     .build();
         } catch (IOException e) {
             return Response.serverError()