diff --git a/pkgs/api/_file.ts b/pkgs/api/_file.ts
index d5d5618..d3b7bab 100644
--- a/pkgs/api/_file.ts
+++ b/pkgs/api/_file.ts
@@ -133,6 +133,7 @@ export const _ = {
     const fname = arr.join("-") + "." + ext;
     const ctype = mime.getType(fname);
     if (ctype) {
+      res.headers.set("content-disposition", `inline; filename="${fname}"`);
       res.headers.set("content-type", ctype);
     }