diff --git a/authfs/service/src/authfs.rs b/authfs/service/src/authfs.rs
index 7a466d3..f41a3a6 100644
--- a/authfs/service/src/authfs.rs
+++ b/authfs/service/src/authfs.rs
@@ -129,7 +129,7 @@
         // TODO(b/185178698): Many input files need to be signed and verified.
         // or can we use debug cert for now, which is better than nothing?
         args.push(OsString::from("--remote-ro-file-unverified"));
-        args.push(OsString::from(format!("{}:{}:{}", conf.fd, conf.fd, conf.fileSize)));
+        args.push(OsString::from(format!("{}:{}", conf.fd, conf.fd)));
     }
     for conf in out_fds {
         args.push(OsString::from("--remote-new-rw-file"));