diff --git a/nixos/modules/services/network-filesystems/u9fs.nix b/nixos/modules/services/network-filesystems/u9fs.nix
index 8bc37f0f62c..4f37fc2a9e5 100644
--- a/nixos/modules/services/network-filesystems/u9fs.nix
+++ b/nixos/modules/services/network-filesystems/u9fs.nix
@@ -67,6 +67,7 @@ in
             StandardInput = "socket";
             StandardError = "journal";
             User = cfg.user;
+            AmbientCapabilities = "cap_setuid cap_setgid";
           };
       };
     };