diff --git a/src/nex/attachment.rs b/src/nex/attachment.rs
index 8c3374d..014116c 100644
--- a/src/nex/attachment.rs
+++ b/src/nex/attachment.rs
@@ -62,7 +62,7 @@ impl Attachment {
         #[cfg(any(target_os = "linux", target_os = "macos"))]
         {
             use std::{fs::Permissions, os::unix::fs::PermissionsExt};
-            fs::set_permissions(target, Permissions::from_mode(0o640))?; // @TODO optional
+            fs::set_permissions(target, Permissions::from_mode(0o644))?; // @TODO optional
         }
         Ok(())
     }